| Yksikön ensimmäinen persoona | Yksikön toinen persoona | Yksikön kolmas persoona | Monikon ensimmäinen persoona | Monikon toinen persoona | Monikon kolmas persoona | |
|---|---|---|---|---|---|---|
| Simple present | impair | impair | impairs | impair | impair | impair |
| Present continuous | am impairing | are impairing | is impairing | are impairing | are impairing | are impairing |
| Simple past | impaired | impaired | impaired | impaired | impaired | impaired |
| Simple past | was impairing | were impairing | was impairing | were impairing | were impairing | were impairing |
| Simple future | will impair | will impair | will impair | will impair | will impair | will impair |
| Future continuous | will be impairing | will be impairing | will be impairing | will be impairing | will be impairing | will be impairing |
| Present perfect | have impaired | have impaired | has impaired | have impaired | have impaired | have impaired |
| Present perfect continuous | have been impairing | have been impairing | has been impairing | have been impairing | have been impairing | have been impairing |
| Past perfect | had impaired | had impaired | had impaired | had impaired | had impaired | had impaired |
| Past perfect continuous | had been impairing | had been impairing | had been impairing | had been impairing | had been impairing | had been impairing |
| Future perfect | will have impaired | will have impaired | will have impaired | will have impaired | will have impaired | will have impaired |
| Future perfect continuous | will have been impairing | will have been impairing | will have been impairing | will have been impairing | will have been impairing | will have been impairing |
| Yksikön ensimmäinen persoona | Yksikön toinen persoona | Yksikön kolmas persoona | Monikon ensimmäinen persoona | Monikon toinen persoona | Monikon kolmas persoona | |
|---|---|---|---|---|---|---|
| Simple present | don't impair | don't impair | doesn't impair | don't impair | don't impair | don't impair |
| Present continuous | am not impairing | are not impairing | is not impairing | are not impairing | are not impairing | are not impairing |
| Simple past | didn't impair | didn't impair | didn't impair | didn't impair | didn't impair | didn't impair |
| Simple past | was not impairing | were not impairing | was not impairing | were not impairing | were not impairing | were not impairing |
| Simple future | won't impair | won't impair | won't impair | won't impair | won't impair | won't impair |
| Future continuous | will not be impairing | will not be impairing | will not be impairing | will not be impairing | will not be impairing | will not be impairing |
| Present perfect | have not impaired | have not impaired | has not impaired | have not impaired | have not impaired | have not impaired |
| Present perfect continuous | have not been impairing | have not been impairing | has not been impairing | have not been impairing | have not been impairing | have not been impairing |
| Past perfect | had not impaired | had not impaired | had not impaired | had not impaired | had not impaired | had not impaired |
| Past perfect continuous | had not been impairing | had not been impairing | had not been impairing | had not been impairing | had not been impairing | had not been impairing |
| Future perfect | will not have impaired | will not have impaired | will not have impaired | will not have impaired | will not have impaired | will not have impaired |
| Future perfect continuous | will not have been impairing | will not have been impairing | will not have been impairing | will not have been impairing | will not have been impairing | will not have been impairing |