|  | ACTIVE |  | PASSIVE |  | 
|  | INDICATIVE | SUBJUNCTIVE | INDICATIVE | SUBJUNCTIVE | 
|  | PRESENT |  |  |  | 
1.sg | investigo | investigem | investigor | investiger | 
| 2.sg | investigas | investiges | investigáris | investigéris | 
| 3.sg | investigat | investiget | investigátur | investigétur | 
| 1.pl | investigámus | investigémus | investigámur | investigémur | 
| 2.pl | investigátis | investigétis | investigámini | investigémini | 
| 3.pl | investigant | investigent | investigántur | investigéntur | 
|  | IMPERFECT |  |  |  | 
| 1.sg | investigábam | investigárem | investigábar | investigárer | 
| 2.sg | investigábas | investigáres | investigabáris | investigaréris | 
| 3.sg | investigábat | investigáret | investigabátur | investigarétur | 
| 1.pl | investigabámus | investigarémus | investigabámur | investigarémur | 
| 2.pl | investigabátis | investigarétis | investigabámini | investigarémini | 
| 3.pl | investigábant | investigárent | investigabántur | investigaréntur | 
|  | FUTURE |  |  |  | 
| 1.sg | investigábo |  | investigábor |  | 
| 2.sg | investigábis |  | investigáberis |  | 
| 3.sg | investigábit |  | investigábitur |  | 
| 1.pl | investigábimus |  | investigábimur |  | 
| 2.pl | investigábitis |  | investigabímini |  | 
| 3.pl | investigábunt |  | investigabúntur |  | 
|  | PERFECT |  |  |  | 
1.sg | investigavi | investigaverim | investigatus -a um sum | investigatus -a um sim | | 2.sg | investigavísti | investigaveris | investigatus -a um es | investigatus -a um sis | 
| 3.sg | investigavit | investigaverit | investigatus -a um est | investigatus -a um sit | 
| 1.pl | investigavimus | investigaverímus | investigati -ae -a sumus | investigati -ae -a simus | 
| 2.pl | investigavístis | investigaverítis | investigati -ae -a estis | investigati -ae -a sitis | 
| 3.pl | investigavérunt | investigaverint | investigati -ae -a sunt | investigati -ae -a sint | 
|  | PLUPERFECT |  |  |  | 
| 1.sg | investigaveram | investigavíssem | investigatus -a um eram | investigatus -a um essem | 
| 2.sg | investigaveras | investigavísses | investigatus -a um eras | investigatus -a um esses | 
| 3.sg | investigaverat | investigavísset | investigatus -a um erat | investigatus -a um esset | 
| 1.pl | investigaverámus | investigavissémus | investigati -ae -a eramus | investigati -ae -a essemus | 
| 2.pl | investigaverátis | investigavissétis | investigati -ae -a eratis | investigati -ae -a essetis | 
| 3.pl | investigaverant | investigavíssent | investigati -ae -a erant | investigati -ae -a essent | 
|  | FUTURE PERFECT |  |  |  | 
| 1.sg | investigavero |  | investigatus -a um ero |  | 
| 2.sg | investigaveris |  | investigatus -a um eris |  | 
| 3.sg | investigaverit |  | investigatus -a um erit |  | 
| 1.pl | investigavérimus |  | investigati -ae -a erimus |  | 
| 2.pl | investigavéritis |  | investigati -ae -a eritis |  | 
| 3.pl | investigaverint |  | investigati -ae -a erunt |  |