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