English verb conjugation COULD IMPAIR

Regular verb: impair - impaired - impaired

Affirmation

Simple form

I could impair
you could impair
he could impair
we could impair
you could impair
they could impair

V-ing form

I could be impairing
you could be impairing
he could be impairing
we could be impairing
you could be impairing
they could be impairing

Perfect

I could have impaired
you could have impaired
he could have impaired
we could have impaired
you could have impaired
they could have impaired

V-ing perfect

I could have been impairing
you could have been impairing
he could have been impairing
we could have been impairing
you could have been impairing
they could have been impairing

Negation

Simple form

I could not impair
you could not impair
he could not impair
we could not impair
you could not impair
they could not impair

V-ing form

I could not be impairing
you could not be impairing
he could not be impairing
we could not be impairing
you could not be impairing
they could not be impairing

Perfect

I could not have impaired
you could not have impaired
he could not have impaired
we could not have impaired
you could not have impaired
they could not have impaired

V-ing perfect

I could not have been impairing
you could not have been impairing
he could not have been impairing
we could not have been impairing
you could not have been impairing
they could not have been impairing

Interrogative form

Simple form

could I impair?
could you impair?
could he impair?
could we impair?
could you impair?
could they impair?

V-ing form

could I be impairing?
could you be impairing?
could he be impairing?
could we be impairing?
could you be impairing?
could they be impairing?

Perfect

could I have impaired?
could you have impaired?
could he have impaired?
could we have impaired?
could you have impaired?
could they have impaired?

V-ing perfect

could I have been impairing?
could you have been impairing?
could he have been impairing?
could we have been impairing?
could you have been impairing?
could they have been impairing?

Interro-negative form

Simple form

could I not impair?
could you not impair?
could he not impair?
could we not impair?
could you not impair?
could they not impair?

V-ing form

could I not be impairing?
could you not be impairing?
could he not be impairing?
could we not be impairing?
could you not be impairing?
could they not be impairing?

Perfect

could I not have impaired?
could you not have impaired?
could he not have impaired?
could we not have impaired?
could you not have impaired?
could they not have impaired?

V-ing perfect

could I not have been impairing?
could you not have been impairing?
could he not have been impairing?
could we not have been impairing?
could you not have been impairing?
could they not have been impairing?

Page top