THIRD CONJUGATION
VERB
Latin : defic-o, deficere, defec-i, defect-um 
English : 
fail/forsake- be wanting/withdraw/revolt
|  | ACTIVE |  | PASSIVE |  | 
|  | INDICATIVE | SUBJUNCTIVE | INDICATIVE | SUBJUNCTIVE | 
|  | PRESENT |  |  |  | 
1.sg | deficio | deficiam | deficior | deficiar | 
| 2.sg | deficis | deficias | deficeris | deficiáris | 
| 3.sg | deficit | deficiat | deficitur | deficiátur | 
| 1.pl | deficimus | deficiámus | deficimur | deficiámur | 
| 2.pl | deficitis | deficiátis | deficímini | deficiámini | 
| 3.pl | deficiunt | deficiant | deficiúntur | deficiántur | 
|  | IMPERFECT |  |  |  | 
| 1.sg | deficiébam | deficerem | deficiébar | deficerer | 
| 2.sg | deficiébas | deficeres | deficiebáris | deficeréris | 
| 3.sg | deficiébat | deficeret | deficiebátur | deficerétur | 
| 1.pl | deficiebámus | deficerémus | deficiebámur | deficerémur | 
| 2.pl | deficiebátis | deficerétis | deficiebámini | deficerémini | 
| 3.pl | deficiébant | deficerent | deficiebántur | deficeréntur | 
|  | FUTURE |  |  |  | 
| 1.sg | deficiam |  | deficiar |  | 
| 2.sg | deficies |  | deficiéris |  | 
| 3.sg | deficiet |  | deficiétur |  | 
| 1.pl | deficiémus |  | deficiémur |  | 
| 2.pl | deficiétis |  | deficiémini |  | 
| 3.pl | deficient |  | deficiéntur |  | 
|  | PERFECT |  |  |  | 
1.sg | defeci | defecerim | defectus -a -um sum | defectus -a -um sim | | 2.sg | defecísti | defeceris | defectus -a -um es | defectus -a -um sis | 
| 3.sg | defecit | defecerit | defectus -a -um est | defectus -a -um sit | 
| 1.pl | defecimus | defecerímus | defecti -ae -a sumus | defecti -ae -a simus | 
| 2.pl | defecístis | defecerítis | defecti -ae -a estis | defecti -ae -a sitis | 
| 3.pl | defecérunt | defecerint | defecti -ae -a sunt | defecti -ae -a sint | 
|  | PLUPERFECT |  |  |  | 
| 1.sg | defeceram | defecíssem | defectus -a -um eram | defectus -a -um essem | 
| 2.sg | defeceras | defecísses | defectus -a -um eras | defectus -a -um esses | 
| 3.sg | defecerat | defecísset | defectus -a -um erat | defectus -a -um esset | 
| 1.pl | defecerámus | defecissémus | defecti -ae -a eramus | defecti -ae -a essemus | 
| 2.pl | defecerátis | defecissétis | defecti -ae -a eratis | defecti -ae -a essetis | 
| 3.pl | defecerant | defecíssent | defecti -ae -a erant | defecti -ae -a essent | 
|  | FUTURE PERFECT |  |  |  | 
| 1.sg | defecero |  | defectus -a -um ero |  | 
| 2.sg | defeceris |  | defectus -a -um eris |  | 
| 3.sg | defecerit |  | defectus -a -um erit |  | 
| 1.pl | defecérimus |  | defecti -ae -a erimus |  | 
| 2.pl | defecéritis |  | defecti -ae -a eritis |  | 
| 3.pl | defecerint |  | defecti -ae -a erunt |  | 
|  | ACTIVE | ACTIVE | PASSIVE | 
|  | IMPERATIVE | INFINITIVE | INFINITIVE | 
| present | defice,  deficite | deficere | defici | 
| perfect |  | defecísse | defectus -a -um esse | 
| future |  | defectúrus -a -um esse |  | 
|  | PARTICIPLE | PARTICIPLE |  |  | GERUND | SUPINE | 
|  | ACTIVE | PASSIVE |  | Gen. | deficiéndi |  | 
| present | deficiens, (-tis) |  |  | Dat. | deficiéndo |  | 
| perfect |  | defectus -a -um |  | Acc. | deficiéndum | defectum | 
| future | defectúrus -a -um | deficiéndus -a -um |  | Abl. | deficiéndo | defectu | 
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.
*     *     *