English verb conjugation COULD BLISTER

Regular verb: blister - blistered - blistered

Affirmation

Simple form

I could blister
you could blister
he could blister
we could blister
you could blister
they could blister

V-ing form

I could be blistering
you could be blistering
he could be blistering
we could be blistering
you could be blistering
they could be blistering

Perfect

I could have blistered
you could have blistered
he could have blistered
we could have blistered
you could have blistered
they could have blistered

V-ing perfect

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

Negation

Simple form

I could not blister
you could not blister
he could not blister
we could not blister
you could not blister
they could not blister

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I blister?
could you blister?
could he blister?
could we blister?
could you blister?
could they blister?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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