English verb conjugation COULD BLISTER

Regular verb: blister - blistered - blistered

Affirmation

Simple form

I could blister
you could blister
she could blister
we could blister
you could blister
they could blister

V-ing form

I could be blistering
you could be blistering
she could be blistering
we could be blistering
you could be blistering
they could be blistering

Perfect

I could have blistered
you could have blistered
she 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
she could have been blistering
we could have been blistering
you could have been blistering
they could have been blistering

Negation

Simple form

I couldn't blister
you couldn't blister
she couldn't blister
we couldn't blister
you couldn't blister
they couldn't blister

V-ing form

I couldn't be blistering
you couldn't be blistering
she couldn't be blistering
we couldn't be blistering
you couldn't be blistering
they couldn't be blistering

Perfect

I couldn't have blistered
you couldn't have blistered
she couldn't have blistered
we couldn't have blistered
you couldn't have blistered
they couldn't have blistered

V-ing perfect

I couldn't have been blistering
you couldn't have been blistering
she couldn't have been blistering
we couldn't have been blistering
you couldn't have been blistering
they couldn't have been blistering

Interrogative form

Simple form

could I blister?
could you blister?
could she blister?
could we blister?
could you blister?
could they blister?

V-ing form

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

Perfect

could I have blistered?
could you have blistered?
could she 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 she have been blistering?
could we have been blistering?
could you have been blistering?
could they have been blistering?

Interro-negative form

Simple form

couldn't I blister?
couldn't you blister?
couldn't she blister?
couldn't we blister?
couldn't you blister?
couldn't they blister?

V-ing form

couldn't I be blistering?
couldn't you be blistering?
couldn't she be blistering?
couldn't we be blistering?
couldn't you be blistering?
couldn't they be blistering?

Perfect

couldn't I have blistered?
couldn't you have blistered?
couldn't she have blistered?
couldn't we have blistered?
couldn't you have blistered?
couldn't they have blistered?

V-ing perfect

couldn't I have been blistering?
couldn't you have been blistering?
couldn't she have been blistering?
couldn't we have been blistering?
couldn't you have been blistering?
couldn't they have been blistering?

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