| Presente (Present) "investigate" | I | investigate | |
| Presente continuo (Present Continuous) "investigate" | I | am investigating | |
| Pasado simple (Simple past) "investigate" | I | investigated | |
| Pasado continuo (Past Continuous) "investigate" | I | was investigating | |
| Presente perfecto (Present perfect) "investigate" | I | have investigated | |
| Presente perfecto continuo (Present perfect continuous) "investigate" | I | have been investigating | |
| Pasado perfecto (Past perfect) "investigate" | I | had investigated | |
| Pasado perfecto continuo (Past perfect continuous) "investigate" | I | had been investigating | |
| Futuro (Future) "investigate" | I | will investigate | |
| Futuro continuo (Future continuous) "investigate" | I | will be investigating | |
| Futuro perfecto (Future perfect) "investigate" | I | will have investigated | |
| Futuro perfecto continuo (Future perfect continuous) "investigate" | I | will have been investigating |