FOURTH CONJUGATION
VERB
Latin : comper-io, comperire, comperu-i, compert-um 
English : 
find out/learn
|  | ACTIVE |  | PASSIVE |  | 
|  | INDICATIVE | SUBJUNCTIVE | INDICATIVE | SUBJUNCTIVE | 
|  | PRESENT |  |  |  | 
1.sg | comperio | comperiam | comperior | comperiar | 
| 2.sg | comperis | comperias | comperíris | comperiáris | 
| 3.sg | comperit | comperiat | comperítur | comperiátur | 
| 1.pl | comperímus | comperiámus | comperímur | comperiámur | 
| 2.pl | comperítis | comperiátis | comperímini | comperiámini | 
| 3.pl | comperiunt | comperiant | comperiúntur | comperiántur | 
|  | IMPERFECT |  |  |  | 
| 1.sg | comperiébam | comperírem | comperiébar | comperirer | 
| 2.sg | comperiébas | comperíres | comperiebáris | comperiréris | 
| 3.sg | comperiébat | comperíret | comperiebátur | comperirétur | 
| 1.pl | comperiebámus | comperirémus | comperiebámur | comperirémur | 
| 2.pl | comperiebátis | comperirétis | comperiebámini | comperirémini | 
| 3.pl | comperiébant | comperírent | comperiebántur | comperiréntur | 
|  | FUTURE |  |  |  | 
| 1.sg | comperiam |  | comperiar |  | 
| 2.sg | comperies |  | comperiéris |  | 
| 3.sg | comperiet |  | comperiétur |  | 
| 1.pl | comperiémus |  | comperiémur |  | 
| 2.pl | comperiétis |  | comperiémini |  | 
| 3.pl | comperient |  | comperiéntur |  | 
|  | PERFECT |  |  |  | 
1.sg | comperui | comperuerim | compertus -a -um sum | compertus -a -um sim | | 2.sg | comperuísti | comperueris | compertus -a -um es | compertus -a -um sis | 
| 3.sg | comperuit | comperuerit | compertus est | compertus sit | 
| 1.pl | comperuimus | comperuerímus | comperti -ae -a sumus | comperti -ae -a simus | 
| 2.pl | comperuístis | comperuerítis | comperti -ae -a estis | comperti -ae -a sitis | 
| 3.pl | comperuérunt | comperuerint | comperti -ae -a sunt | comperti -ae -a sint | 
|  | PLUPERFECT |  |  |  | 
| 1.sg | comperueram | comperuíssem | compertus -a -um eram | compertus -a -um essem | 
| 2.sg | comperueras | comperuísses | compertus -a -um eras | compertus -a -um esses | 
| 3.sg | comperuerat | comperuísset | compertus -a -um erat | compertus -a -um esset | 
| 1.pl | comperuerámus | comperuissémus | comperti -ae -a eramus | comperti -ae -a essemus | 
| 2.pl | comperuerátis | comperuissétis | comperti -ae -a eratis | comperti -ae -a essetis | 
| 3.pl | comperuerant | comperuíssent | comperti -ae -a erant | comperti -ae -a essent | 
|  | FUTURE PERFECT |  |  |  | 
| 1.sg | comperuero |  | compertus -a -um ero |  | 
| 2.sg | comperueris |  | compertus -a -um eris |  | 
| 3.sg | comperuerit |  | compertus -a -um erit |  | 
| 1.pl | comperuérimus |  | comperti -ae -a erimus |  | 
| 2.pl | comperuéritis |  | comperti -ae -a eritis |  | 
| 3.pl | comperuerint |  | comperti -ae -a erunt |  | 
|  | ACTIVE | ACTIVE | PASSIVE | 
|  | IMPERATIVE | INFINITIVE | INFINITIVE | 
| present | comperi  comperite | comperire | comperiri | 
| perfect |  | comperuísse | compertus -a -um esse | 
| future |  | compertúrus -a -um esse |  | 
|  | PARTICIPLE | PARTICIPLE |  |  | GERUND | SUPINE | 
|  | ACTIVE | PASSIVE |  | Gen. | comperiéndi |  | 
| present | comperiens, (-tis) |  |  | Dat. | comperiéndo |  | 
| perfect |  | compertus -a -um |  | Acc. | comperiéndum | compertum | 
| future | compertúrus -a -um | comperiéndus -a -um |  | Abl. | comperiéndo | compertu | 
Consult the Internet version
The present webpage is compiled for an introductory Latin course at the Chinese University of Hong Kong by Dr. Louis Ha.
Copyright: Louis Ha, 2003.
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