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