The second meaning of the word conjugation is a group of verbs which all have the same pattern of inflections. Thus all those Latin verbs which in the present tense have 1st singular -ō, 2nd singular -ās, and infinitive -āre are said to belong to the 1st conjugation, those with 1st singular -eō, 2nd singular -ēs and infinitive -ēre belong to the 2nd conjugation, and so on. The number of conjugations of regular verbs is usually said to be four.
The word "conjugation" comes from the Latin coniugātiō, a calque of the Greek συζυγία (syzygia), literally "yoking together (horses into a team)".
The ancient Romans themselves, beginning with Varro (1st century BC), originally divided their verbs into three conjugations (coniugationes verbis accidunt tres: prima, secunda, tertia "there are three different conjugations for verbs: the first, second, and third" (Donatus), 4th century AD), according to whether the ending of the 2nd person singular had an a, an e or an i in it.[2] However, others, such as Sacerdos (3rd century AD), Dositheus (4th century AD) and Priscian[3] (c. 500 AD), recognised four different groups.[4]
In modern times grammarians[5] generally recognise four conjugations according to the ending of the active infinitive: namely -āre, -ēre, -ere, or -īre, for example: (1) amō, amāre "to love", (2) videō, vidēre "to see", (3) regō, regere "to rule" and capiō, capere "to capture", (4) audiō, audīre "to hear". (3rd conjugation verbs ending in -iō such as capiō are sometimes known as "mixed conjugation" since they use a mixture of 3rd and 4th conjugation endings.)
In addition to regular verbs, which belong to one or other of the four regular conjugations, there are also a few irregular verbs, which have a different pattern of endings. The most frequent of these is the verb sum, esse "to be" together with its prefixed derivatives.
There also exist deponent Latin verbs, which though active in meaning have endings identical to the passive endings of ordinary verbs. Examples in the different conjugations are: (1) moror, morārī "to delay", (2) polliceor, pollicērī "to promise", (3) sequor, sequī "to follow" and regredior, regredī "to go back", (4) mentior, mentīrī "to lie (tell a lie)". Some verbs are semi-deponent, using passive forms for the perfect tenses only.
Principal parts
A verb's full paradigm relies on multiple stems. The present indicative active and the present infinitive are both based on the present stem.
It is not possible to infer the stems for other tenses from the present stem. This means that, although the infinitive active form normally shows the verb conjugation, knowledge of several different forms is necessary to be able to confidently produce the full range of forms for any particular verb.
In a dictionary, Latin verbs are listed with four "principal parts" (or fewer for deponent and defective verbs), which allow the student to deduce the other conjugated forms of the verbs. These are:
the first person singular of the perfect indicative active
the supine or, in some grammars, the perfect passive participle, which uses the same stem. (Texts that list the perfect passive participle use the future active participle for intransitive verbs.) Some verbs lack this principal part altogether.
Regular conjugations
First conjugation
The first conjugation is characterized by the vowelā and can be recognized by the -āre ending of the present active infinitive form. The infectum tenses conjugate as follows (see also their meaning):
* The 2nd person singular passive amāberis, amābāris, amēris, amārēris can be shortened to amābere, amābāre, amēre, amārēre. -re was the regular form in early Latin and (except in the present indicative) in Cicero; -ris was preferred later.[6]
In early Latin (Plautus), the 3rd singular endings -at and -et were pronounced -āt and -ēt with a long vowel.[6]
Other forms:
Infinitive: amāre "to love"
Passive infinitive: amārī "to be loved" (in early Latin often amārier)[6]
Imperative: amā! (pl. amāte!) "love!"
Future imperative: amātō! (pl. amātōte!) "love! (at a future time)"
Indirect imperative: amātō! (pl. amantō!) "let him love!"
Passive imperative: amāre! (pl. amāminī!) "be loved!" (usually only found in deponent verbs)
Passive future imperative: amātor! (pl. amātōminī!) "be loved! (at a future time)"
Passive indirect imperative: amātor! (pl. amantor!) "let him be loved!"
Present participle: amāns (pl. amantēs) "loving"
Future participle: amātūrus (pl. amātūrī) "going to love"
Gerundive: amandus (pl. amandī) "needing to be loved"
Gerund: amandī "of loving", amandō "by/for loving", ad amandum "in order to love"
The principal parts usually adhere to one of the following patterns:
The perfect has the suffix -āvī. The majority of first-conjugation verbs follow this pattern, which is considered to be "regular", for example:
In poetry (and also sometimes in prose, e.g. Livy), the 3rd person plural of the perfect indicative is often amāvēre instead of amāvērunt. Occasionally the form amāverunt is also found.[8]
In early Latin, the future perfect indicative had a short i in amāveris, amāverimus, amāveritis, but by the time of Cicero these forms were usually pronounced with a long i, in the same way as in the perfect subjunctive.[9] Virgil has a short i for both tenses; Horace uses both forms for both tenses; Ovid uses both forms for the future perfect, but a long i in the perfect subjunctive.[10]
The -v- of the perfect active tenses sometimes drops out, especially in the pluperfect subjunctive: amāssem for amāvissem. Forms such as amārat and amāstī are also found.
The passive tenses also have feminine and neuter forms, e.g. amāta est "she was loved", nūntiātum est "it was announced".
Forms made with fuī instead of sum and forem instead of essem are also found, for example amātus fuī, amātus fuerō, amātus forem and so on, but these are not common in classical Latin. See Latin tenses.
The second conjugation is characterized by the vowel ē, and can be recognized by the -eō ending of the first person present indicative and the -ēre ending of the present active infinitive form:
terreō, terrēre, terruī, territum "to frighten, to deter"
timeō, timēre, timuī, – "to fear"
valeō, valēre, valuī, (valitum) "to be strong"
The perfect has the suffix –ēvī. Example:
dēleō, dēlēre, dēlēvī, dēlētum "to destroy"
fleō, flēre, flēvī, flētum "to weep"
In verbs with perfect in -vī, syncopated (i.e. abbreviated) forms are common, such as dēlēram, dēlēssem, dēlēstī for dēlēveram, dēlēvissem, dēlēvistī.[11]
The perfect has the suffix –īvī. Example:
cieō, ciēre, cīvī, citum "to arouse, to stir"
The perfect has the suffix -sī (which combines with a preceding c or g to –xī). Examples:
ārdeō, ārdēre, ārsī, ārsum "to burn"
augeō, augēre, auxī, auctum "to increase, to enlarge"
haereō, haerēre, haesī, haesum "to stick, to adhere, to get stuck"
Deponent verbs in this conjugation are few. They mostly go like the passive of terreō, but fateor and confiteor have a perfect participle with ss:[12]
fateor, fatērī, fassus sum "to confess"
mereor, merērī, meritus sum "to deserve"
polliceor, pollicērī, pollicitus sum "to promise"
The following are semi-deponent, that is, they are deponent only in the three perfect tenses:[13]
audeō, audēre, ausus sum "to dare"
gaudeō, gaudēre, gāvīsus sum "to rejoice, to be glad"
soleō, solēre, solitus sum "to be accustomed"
Third conjugation
The third conjugation has a variable short stem vowel, which may be e, i, or u in different environments. Verbs of this conjugation end in -ere in the present active infinitive. Deponent verbs have the infinitive -ī.
petō, petere, petīvī, petītum "to seek, to attack"
quaerō, quaerere, quaesīvī, quaesītum "to look for, ask"
serō, serere, sēvī, satum "to sow, to plant"
sternō, sternere, strāvī, strātum "to spread, to stretch out"
terō, terere, trīvī, trītum "to rub, to wear out"
The perfect has suffix -ī and vowel lengthening in the stem. If the present stem has an n infix, as in fundō, relinquō and vincō, the infix disappears in the perfect. In some cases, the long vowel in the perfect is thought to be derived from an earlier reduplicated form, e.g. *e-agī > ēgī, *e-emī > ēmī.[15] Examples:
Deponent verbs in the 3rd conjugation include the following:
complector, complectī, complexus sum "to embrace"
fruor, fruī, frūctus sum "to enjoy" (fruitus is occasionally found)
fungor, fungī, fūnctus sum "to perform, discharge, busy oneself with"
lābor, lābī, lāpsus sum "to glide, slip"
loquor, loquī, locūtus sum "to speak"
nītor, nītī, nīxus sum "to lean on; to strive" (nīsus is occasionally found)
queror, querī, questus sum "to complain"
sequor, sequī, secūtus sum "to follow"
ūtor, ūtī, ūsus sum "to use"
vehor, vehī, vectus sum "to ride"
There are also a number of 3rd conjugation deponents with the ending -scor:
adipīscor, adipīscī, adeptus sum "to obtain"
īrāscor, īrāscī, īrātus sum "to get angry"
nancīscor, nancīscī, nactus sum "to obtain"
nāscor, nāscī, nātus sum "to be born"
oblīvīscor, oblīvīscī, oblītus sum "to forget"
proficīscor, proficīscī, profectus sum "to set out"
ulcīscor, ulcīscī, ultus sum "to avenge, take vengeance on"
Deponent in some tenses only is the following:[13]
fīdō, fīdere, fīsus sum "to trust"
The following is deponent only in the infectum tenses:
revertor, revertī, revertī "to turn back"
Third conjugation -iō verbs
Intermediate between the third and fourth conjugation are the third-conjugation verbs with suffix –iō. These resemble the fourth conjugation in some forms.
The fourth conjugation is characterized by the vowel ī and can be recognized by the -īre ending of the present active infinitive. Deponent verbs have the infinitive -īrī:
The perfect has suffix -ī and vowel lengthening in the stem. Examples:
veniō, venīre, vēnī, ventum "to come, to arrive"
inveniō, invenīre, invēnī, inventum "to find"
Deponent verbs in the 4th conjugation include the following:[16]
assentior, assentīrī, assēnsus sum "to assent"
experior, experīrī, expertus sum "to experience, test"
largior, largīrī, largītus sum "to bestow"
mentior, mentīrī, mentītus sum "to tell a lie"
mētior, mētīrī, mēnsus sum "to measure"
mōlior, mōlīrī, mōlītus sum "to exert oneself, set in motion, build"
potior, potīrī, potītus sum "to obtain, gain possession of"
sortior, sortīrī, sortītus sum "to cast lots"
The verb orior, orīrī, ortus sum "to arise" is also regarded as 4th conjugation, although some parts, such as the 3rd singular present tense oritur and imperfect subjunctive orerer, have a short vowel like the 3rd conjugation. But its compound adorior "to rise up, attack" is entirely 4th conjugation.
In the perfect tenses, shortened forms without -v- are common, for example, audīstī, audiērunt, audierat, audīsset for audīvistī, audīvērunt, audīverat, audīvisset. Cicero, however, prefers the full forms audīvī, audīvit to audiī, audiit.[11]
Irregular verb
Sum and possum
The verb sum, esse, fuī "to be" is the most common verb in Latin. It is conjugated as follows:[17]
In early Latin (e.g. Plautus), siem, siēs, siēt can be found for the present subjunctive sim, sīs, sit. In poetry the subjunctive fuam, fuās, fuat also sometimes occurs.[18]
An alternative imperfect subjunctive is sometimes made using forem, forēs, foret etc. See further: Latin tenses#Foret.
Other forms:
Infinitive: esse "to be", posse "to be able"
Perfect infinitive: fuisse "to have been", potuisse "to have been able"
Future infinitive: fore "to be going to be" (also futūrus esse)
Imperative: es! (pl. este!) "be!"
Future imperative: estō! (pl. estōte!) "be! (at a future time)"
Future participle: futūrus (pl. futūrī) "going to be" (Possum has no future participle or future infinitive.)
The present participle is found only in the compounds absēns "absent" and praesēns "present".[18]
In Plautus and Lucretius, an infinitive potesse is sometimes found for posse "to be able".
The principal parts of these verbs are as follows:
sum, esse, fuī "to be"
absum, abesse, āfuī "to be away"
adsum, adesse, adfuī "to be present"
dēsum, dēesse, dēfuī "to be wanting"
possum, posse, potuī "to be able"
prōsum, prōdesse, prōfuī "to be for, to profit" (adds d before a vowel)[18]
The verb volō and its derivatives nōlō and mālō (short for magis volō) resemble a 3rd conjugation verb, but the present subjunctive ending in -im is different:
Imperative: nōlī, pl. nōlīte (used in expressions such as nōlī mīrārī "don't be surprised!")
Principal parts:
volō, velle, voluī "to want"
nōlō, nōlle, nōluī "not to want, to be unwilling"
mālō, mālle, māluī "to prefer"
The perfect tenses are formed regularly.
Eō and compounds
The verb eō "I go" is an irregular 4th conjugation verb, in which the i of the stem sometimes becomes e. Like 1st and 2nd conjugation verbs, it uses the future -bō, -bis, -bit:[20]
Indicative
Subjunctive
Present
Future
Imperfect
Present
Imperfect
Active
I go
I will go
I was going
I may go
I might go
I you sg. he, she, it we you pl. they
eō īs it īmus ītis eunt
ībō ībis ībit ībimus ībitis ībunt
ībam ībās ībat ībāmus ībātis ībant
eam eās eat eāmus eātis eant
īrem īrēs īret īrēmus īrētis īrent
Other forms:
Infinitive: īre "to go"
Passive infinitive: īrī "to go" (used impersonally, e.g. quō īrī dēbēret ignōrantēs "not knowing which way to go")
Imperative: ī! (pl. īte!) "go!"
Future imperative: ītō! (pl. ītōte!) "go! (at a future time)" (rare)
Present participle: iēns (pl. euntēs) "going"
Future participle: itūrus (pl. itūrī) "going to go"
Gerundive: eundum "necessary to go" (used impersonally only)
Gerund: eundī "of going", eundō "by / for going", ad eundum "in order to go"
The impersonal passive forms ītur "they go", itum est "they went" are sometimes found.[21]
The principal parts of some verbs which conjugate like eō are the following:
redeō, redīre, rediī, reditum "to return, to go back"
subeō, subīre, subiī, subitum "to go under, to approach stealthily, to undergo"
vēneō, vēnīre, vēniī, vēnitum "to be sold"
In the perfect tenses of these verbs, the -v- is almost always omitted, especially in the compounds,[22] although the form exīvit is common in the Vulgate Bible translation.
In some perfect forms, the vowels ii- are contracted to ī-: second person singular perfect īstī, second person plural perfect īstis; pluperfect subjunctive īssem, īssēs, ..., īssent; perfect infinitive īsse (the form iisse is also attested).
The verb queō, quīre, quiī/quīvī, quitum "to be able" has forms similar to eō.
Ferō and compounds
The verb ferō, ferre, tulī, lātum "to bring, to bear, to carry" is 3rd conjugation, but irregular in that the vowel following the root fer- is sometimes omitted. The perfect tense tulī and supine stem lātum are also irregularly formed.[23]
The future tense in the 3rd and 4th conjugation (-am, -ēs, -et etc.) differs from that in the 1st and 2nd conjugation (-bō, -bis, -bit etc.).
Other forms:
Infinitive: ferre "to bring"
Passive infinitive: ferrī "to be brought"
Imperative: fer! (pl. ferte!) "bring!"
Passive imperative: ferre! (pl. feriminī!) "be carried!" (rare)
Present participle: ferēns (pl. ferentēs) "bringing"
Future participle: lātūrus (pl. lātūrī) "going to bring"
Gerundive: ferendus (pl. ferendī) "needing to be brought"
Gerund: ferendī "of bringing", ferendō "by /for bringing", ad ferendum "in order to bring"
Compounds of ferō include the following:[24]
The principal parts of some verbs which conjugate like ferō are the following:
afferō, afferre, attulī, allātum "to bring (to)"
auferō, auferre, abstulī, ablātum "to carry away, to steal"
cōnferō, cōnferre, contulī, collātum "to collect"
differō, differre, distulī, dīlātum "to put off"
efferō, efferre, extulī, ēlātum "to carry out"
offerō, offerre, obtulī, oblātum "to offer"
referō, referre, rettulī, relātum "to refer"
The perfect tense sustulī, however, belongs to the verb tollō:
tollō, tollere, sustulī, sublātum "to raise, to remove"
Fīō
The irregular verb fīō, fierī, factus sum "to become, to happen, to be done, to be made" as well as being a verb in its own right serves as the passive of faciō, facere, fēcī, factum "to do, to make".[25] The perfect tenses are identical with the perfect passive tenses of faciō.
Indicative
Subjunctive
Present
Future
Imperfect
Present
Imperfect
Active
I become
I will become
I was becoming
I may become
I might become
I you sg. he, she, it we you pl. they
fīō fīs fit (fīmus) (fītis) fīunt
fīam fīēs fīet fīēmus fīētis fīent
fīēbam fīēbās fīēbat fīēbāmus fīēbātis fīēbant
fīam fīās fīat fīāmus fīātis fīant
fierem fierēs fieret fierēmus fierētis fierent
The 1st and 2nd plural forms are almost never found.
Other forms:
Infinitive: fierī "to become, to be done, to happen"
Imperative: fī! (pl. fīte!) "become!"
Edō
The verb edō, edere/ēsse, ēdī, ēsum "to eat" has regular 3rd conjugation forms appearing alongside irregular ones:[26]
Future participle: ēsūrus (pl. ēsūrī) "going to eat"
Gerundive: edendus (pl. edendī) "needing to be eaten"
Gerund: edendī "of eating", edendō "by /for eating", ad edendum "in order to eat" / "for eating"
The passive form ēstur "it is eaten" is also found.
The present subjunctive edim, edīs, edit etc. is found mostly in early Latin.
In writing, there is a possibility of confusion between the forms of this verb and those of sum "I am" and ēdō "I give out, put forth"; for example, ēsse "to eat" vs. esse "to be"; edit "he eats" vs. ēdit "he gives out".
The compound verb comedō, comedere/comēsse, comēdī, comēsum "to eat up, consume" is similar.
Non-finite forms
The non-finite forms of verbs are participles, infinitives, supines, gerunds and gerundives. The verbs used are:
1st conjugation:laudō, laudāre, laudāvī, laudātum – to praise
2nd conjugation:terreō, terrēre, terruī, territum – to frighten, deter
3rd conjugation:petō, petere, petīvī, petītum – to seek, attack
There are four participles: present active, perfect passive, future active, and future passive (= the gerundive).
The present active participle is declined as a 3rd declension adjective. The ablative singular is -e, but the plural follows the i-stem declension with genitive -ium and neuter plural -ia.
In all conjugations the -um is removed from the supine, and an -ūrus (masculine nominative singular) is added.
The future passive participle, more usually called the gerundive, is formed by taking the present stem, adding "-nd-", and the usual first and second declension endings. Thus laudare forms laudandus. The usual meaning is "needing to be praised", expressing a sense of obligation.
There are seven main infinitives. They are in the present active, present passive, perfect active, perfect passive, future active, future passive, and potential active. Further infinitives can be made using the gerundive.
The present active infinitive is the second principal part (in regular verbs). It plays an important role in the syntactic construction of Accusative and infinitive, for instance.
laudāre means, "to praise."
The present passive infinitive is formed by adding a –rī to the present stem. This is only so for the first, second and fourth conjugations. In the third conjugation, the thematical vowel, e, is taken from the present stem, and an –ī is added.
laudārī translates as "to be praised."
The perfect active infinitive is formed by adding an –isse onto the perfect stem.
laudāvisse/laudāsse translates as "to have praised."
The perfect passive infinitive uses the perfect passive participle along with the auxiliary verb esse. The perfect passive infinitive must agree with what it is describing in number, gender, and case (nominative or accusative).
laudātus esse means, "to have been praised."
The future active infinitive uses the future active participle with the auxiliary verb esse.
laudātūrus esse means, "to be going to praise." The future active infinitive must agree with what it is describing in number, gender, and case (nominative or accusative).
Esse has two future infinitives: futurus esse and fore
The future passive infinitive uses the supine with the auxiliary verb īrī. Because the first part is a supine, the ending -um does not change for gender or number.
laudātum īrī is translated as "to be going to be praised." This is normally used in indirect speech. For example: Spērat sē absolūtum īrī.[27] "He hopes that he will be acquitted."
The potential infinitive uses the future active participle with the auxiliary verb fuisse.
laudātūrus fuisse is used only in indirect statements to represent a potential imperfect or pluperfect subjunctive of direct speech. It is translated with "would" or "would have". For example: nōn vidētur mentītūrus fuisse, nisī dēspērāsset (Quintilian)[28] 'it seems unlikely that he would have told a lie, if he had not been desperate'
Infinitives (with masculine endings used for participles)
laudāre
terrēre
petere
capere
audīre
Present active
laudāre
terrēre
petere
capere
audīre
Present passive
laudārī
terrērī
petī
capī
audīrī
Perfect active
laudāvisse
terruisse
petīvisse
cēpisse
audīvisse
Perfect passive
laudātus esse
territus esse
petītus esse
captus esse
audītus esse
Future active
laudātūrus esse
territūrus esse
petītūrus esse
captūrus esse
audītūrus esse
Future passive
laudātum īrī
territum īrī
petītum īrī
captum īrī
audītum īrī
Potential
laudātūrus fuisse
territūrus fuisse
petītūrus fuisse
captūrus fuisse
audītūrus fuisse
The future passive infinitive was not very commonly used. The Romans themselves often used an alternate expression, fore ut followed by a subjunctive clause.
The supine is the fourth principal part of the verb, as given in Latin dictionaries. It resembles a masculine noun of the fourth declension. Supines only occur in the accusative and ablative cases.
The accusative form ends in a –um, and is used with a verb of motion in order to show purpose. Thus it is only used with verbs like īre "to go", venīre "to come", etc. The accusative form of a supine can also take an object if needed.
Pater līberōs suōs laudātum vēnit. – The father came to praise his children.
The ablative, which ends in a –ū, is used with the Ablative of Specification.
Arma haec facillima laudātū erant. – These arms were the easiest to praise.
The gerund is formed similarly to the present active participle. However, the -ns becomes an -ndus, and the preceding ā or ē is shortened. Gerunds are neuter nouns of the second declension, but the nominative case is not present. The gerund is a noun, meaning "the act of doing (the verb)", and forms a suppletive paradigm to the infinitive, which cannot be declined. For example, the genitive form laudandī can mean "of praising", the dative form laudandō can mean "for praising", the accusative form laudandum can mean "praising", and the ablative form laudandō can mean "by praising", "in respect to praising", etc.
Gerund
laudāre
terrēre
petere
capere
audīre
Accusative
laudandum
terrendum
petendum
capiendum
audiendum
Genitive
laudandī
terrendī
petendī
capiendī
audiendī
Dative
laudandō
terrendō
petendō
capiendō
audiendō
Ablative
One common use of the gerund is with the preposition ad to indicate purpose. For example, paratus ad oppugnandum could be translated as "ready to attack". However the gerund was avoided when an object was introduced, and a passive construction with the gerundive was preferred. For example, for "ready to attack the enemy" the construction paratus ad hostes oppugnandos is preferred over paratus ad hostes oppugnandum.[29]
The gerundive has a form similar to that of the gerund, but it is a first and second declension adjective, and functions as a future passive participle (see § Participles above). It means "(which is) to be ...ed". Often, the gerundive is used with part of the verb esse, to show obligation.
Puer laudandus est "The boy needs to be praised"
Oratio laudanda est means "The speech is to be praised". In such constructions a substantive in dative may be used to identify the agent of the obligation (dativus auctoris), as in Oratio nobis laudanda est meaning "The speech is to be praised by us" or "We must praise the speech".
Gerundive
laudāre
terrēre
petere
capere
audīre
laudandus, -a, -um
terrendus, -a, -um
petendus, -a, -um
capiendus, -a, -um
audiendus, -a, -um
An older form of the 3rd and 4th conjugation gerundive ends in -undum, e.g. (faciundum for faciendum).[6] This ending is also found with the gerundive of eō 'I go': eundum est 'it is necessary to go'.
For some examples of uses of Latin gerundives, see the Gerundive article.
There are two periphrastic conjugations. One is active, and the other is passive.
Active
The first periphrastic conjugation uses the future participle. It is combined with the forms of esse. It is translated as "I am going to praise," "I was going to praise", etc.
Conjugation
Translation
Pres. ind.
laudātūrus sum
I am going to praise
Imp. ind.
laudātūrus eram
I was going to praise
Fut. ind.
laudātūrus erō
I shall be going to praise
Perf. ind.
laudātūrus fuī
I have been going to praise
Plup. ind.
laudātūrus fueram
I had been going to praise
Fut. perf. ind.
laudātūrus fuerō
I shall have been going to praise
Pres. subj.
laudātūrus sim
I may be going to praise
Imp. subj.
laudātūrus essem
I should be going to praise
Perf. subj.
laudātūrus fuerim
I may have been going to praise
Plup. subj.
laudātūrus fuissem
I should have been going to praise
Passive
The second periphrastic conjugation uses the gerundive. It is combined with the forms of esse and expresses necessity. It is translated as "I am needing to be praised", "I was needing to be praised", etc., or as "I have to (i.e., must) be praised", "I had to be praised," etc. It may also be translated in English word by word, as in "You are to be (i.e., must be) praised."[30]
Conjugation
Translation
Pres. ind.
laudandus sum
I am needing to be praised
Imp. ind.
laudandus eram
I was needing to be praised
Fut. ind.
laudandus erō
I will be needing to be praised
Perf. ind.
laudandus fuī
I was needing to be praised
Plup. ind.
laudandus fueram
I had been needing to be praised
Fut. perf. ind.
laudandus fuerō
I will have been needing to be praised
Pres. subj.
laudandus sim
I may be needing to be praised
Imp. subj.
laudandus essem
I should be needing to be praised
Perf. subj.
laudandus fuerim
I may have been needing to be praised
Plup. subj.
laudandus fuissem
I should have been needing to be praised
Pres. inf.
laudandus esse
To be needing to be praised
Perf. inf.
laudandus fuisse
To have been needing to be praised
Peculiarities
Deponent and semi-deponent verbs
Deponent verbs are verbs that are passive in form (that is, conjugated as though in the passive voice) but active in meaning. These verbs have only three principal parts, since the perfect of ordinary passives is formed periphrastically with the perfect participle, which is formed on the same stem as the supine. Some examples coming from all conjugations are:
1st conjugation:mīror, mīrārī, mīrātus sum – to admire, wonder
2nd conjugation:polliceor, pollicērī, pollicitus sum – to promise, offer
3rd conjugation:loquor, loquī, locūtus sum – to speak, say
4th conjugation: mentior, mentīrī, mentītus sum – to tell a lie
Deponent verbs use active conjugations for tenses that do not exist in the passive: the gerund, the supine, the present and future participles and the future infinitive. They cannot be used in the passive themselves (except the gerundive), and their analogues with "active" form do not in fact exist: one cannot directly translate "The word is said" with any form of loquī, and there are no forms like loquō, loquis, loquit, etc.
Semi-deponent verbs form their imperfective aspect tenses in the manner of ordinary active verbs; but their perfect tenses are built periphrastically like deponents and ordinary passives; thus, semi-deponent verbs have a perfect active participle instead of a perfect passive participle. An example:
audeō, audēre, ausus sum – to dare, venture
Unlike the proper passive of active verbs, which is always intransitive, some deponent verbs are transitive, which means that they can take an object. For example:
hostes sequitur. – he follows the enemy.
Note: In the Romance languages, which lack deponent or passive verb forms, the Classical Latin deponent verbs either disappeared (being replaced with non-deponent verbs of a similar meaning) or changed to a non-deponent form. For example, in Spanish and Italian, mīrārī changed to mirar(e) by changing all the verb forms to the previously nonexistent "active form", and audeō changed to osar(e) by taking the participle ausus and making an -ar(e) verb out of it (note that au went to o).
Defective verbs
Defective verbs are verbs that are conjugated in only some instances.
Some verbs are conjugated only in the perfective aspect's tenses, yet have the imperfective aspect's tenses' meanings. As such, the perfect becomes the present, the pluperfect becomes the imperfect, and the future perfect becomes the future. Therefore, the defective verb ōdī means, "I hate." These defective verbs' principal parts are given in vocabulary with the indicative perfect in the first person and the perfect active infinitive. Some examples are:
ōdī, ōdisse (future participle ōsūrus) – to hate
meminī, meminisse (imperative mementō, mementōte) – to remember
coepī, coeptum, coepisse – to have begun
A few verbs, the meanings of which usually have to do with speech, appear only in certain occurrences.
Cedo (plur. cette), which means "Hand it over" is only in the imperative mood, and only is used in the second person.
The following are conjugated irregularly:
Aio
Conjugation of aiō
Indicative present
Indicative imperfect
Subjunctive present
Imperative present
Singular
Plural
Singular
Plural
Singular
Plural
Singular
First person
aiō
—
aiēbam
aiēbāmus
—
—
—
Second person
ais
aiēbās
aiēbātis
aiās
ai
Third person
ait
aiunt
aiēbat
aiēbant
aiat
aiant
—
Present Active Participle: – aiēns, aientis
Inquam
Conjugation of inquam
Present indicative
Future indicative
Perfect indicative
Imperfect indicative
Singular
Plural
Singular
Singular
Singular
First person
inquam
inquimus
—
inquiī
—
Second person
inquis
inquitis
inquiēs
inquistī
Third person
inquit
inquiunt
inquiet
inquit
inquiēbat
For
Conjugation of for
Present indicative
Future indicative
Perfect indicative
Pluperfect indicative
Present imperative
Singular
Plural
Singular
Singular
Singular
Singular
Plural
First person
for
—
fābor
fātus sum
fātus eram
—
—
Second person
—
—
—
—
fāre
fāminī
Third person
fātur
fantur
fābitur
—
—
Present Active Participle – fāns, fantis
Present Active Infinitive – fārī (variant: fārier)
Supine – (acc.) fātum, (abl.) fātū
Gerund – (gen.) fandī, (dat. and abl.) fandō, no accusative
Gerundive – fandus, –a, –um
The Romance languages lost many of these verbs, but others (such as ōdī) survived but became regular fully conjugated verbs (in Italian, odiare).
Impersonal verbs
Impersonal verbs are those lacking a person. In English impersonal verbs are usually used with the neuter pronoun "it" (as in "It seems," or "it is raining"). Latin uses the third person singular. These verbs lack a fourth principal part. A few examples are:
pluit, pluere, plūvit/pluit – to rain (it rains)
ningit, ningere, ninxit – to snow (it snows)
oportet, oportēre, oportuit – to be proper (it is proper, one should/ought to)
licet, licēre, licuit – to be permitted [to] (it is allowed [to])
Irregular future active participles
The future active participle is normally formed by removing the –um from the supine, and adding a –ūrus. However, some deviations occur.
Present active infinitive
Supine
Future active participle
Meaning
iuvāre
iūtum
iuvātūrus
going to help
lavāre/lavere
lavātum (but PPP lautus)
lavātūrus
going to wash
parere
partum
paritūrus
going to produce
ruere
rutum
ruitūrus
going to fall
secāre
sectum
secātūrus
going to cut
fruī
frūctum/fruitum
fruitūrus
going to enjoy
nāscī
nātum
nātūrus/nascitūrus
going to be born
morī
mortuum
moritūrus
going to die
orīrī
ortum
oritūrus
going to rise
Alternative verb forms
Several verb forms may occur in alternative forms (in some authors these forms are fairly common, if not more common than the canonical ones):
The ending –ris in the passive voice may be –re as in:
laudābāris → laudābāre
The ending –ērunt in the perfect may be –ēre (primarily in poetry) as in:
laudāvērunt → laudāvēre
The ending –ī in the passive infinitive may be –ier as in:
laudārī → laudārier, dicī → dicier
Syncopated verb forms
Like in most Romance languages, syncopated forms and contractions are present in Latin. They may occur in the following instances:
Perfect stems that end in a –v may be contracted when inflected.
laudāvisse → laudāsse
laudāvistī → laudāstī
laudāverant → laudārant
laudāvisset → laudāsset
The compounds of nōscere (to learn) and movēre (to move, dislodge) can also be contracted.
