| Présent (Present) "decrease" | I | decrease | |
| Présent continu (Present Continuous) "decrease" | I | am decreasing | |
| Passé (Simple past) "decrease" | I | decreased | |
| Passé antérieur (Past Continuous) "decrease" | I | was decreasing | |
| Présent parfait (Present perfect) "decrease" | I | have decreased | |
| Continu Présent (Present perfect continuous) "decrease" | I | have been decreasing | |
| Imparfait (Past perfect) "decrease" | I | had decreased | |
| Plus-que-parfait (Past perfect continuous) "decrease" | I | had been decreasing | |
| Futur simple (Future) "decrease" | I | will decrease | |
| Futur (Future continuous) "decrease" | I | will be decreasing | |
| Futur antérieur (Future perfect) "decrease" | I | will have decreased | |
| Futur antérieur continu (Future perfect continuous) "decrease" | I | will have been decreasing |