| Prezent (Present) "investigate" | I | investigate | |
| Prezent continuu (Present Continuous) "investigate" | I | am investigating | |
| Trecut simplu (Simple past) "investigate" | I | investigated | |
| Trecutul continuu (Past Continuous) "investigate" | I | was investigating | |
| Present Perfect (Present perfect) "investigate" | I | have investigated | |
| Present Perfect continuu (Present perfect continuous) "investigate" | I | have been investigating | |
| Trecutul perfect (Past perfect) "investigate" | I | had investigated | |
| Trecut perfect continuu (Past perfect continuous) "investigate" | I | had been investigating | |
| Viitor (Future) "investigate" | I | will investigate | |
| Viitorul continuu (Future continuous) "investigate" | I | will be investigating | |
| Viitorul perfect (Future perfect) "investigate" | I | will have investigated | |
| Perfectă Viitorul continuu (Future perfect continuous) "investigate" | I | will have been investigating |