English verb conjugation COULD QUIVER

Regular verb: quiver - quivered - quivered

Affirmation

Simple form

I could quiver
you could quiver
she could quiver
we could quiver
you could quiver
they could quiver

V-ing form

I could be quivering
you could be quivering
she could be quivering
we could be quivering
you could be quivering
they could be quivering

Perfect

I could have quivered
you could have quivered
she could have quivered
we could have quivered
you could have quivered
they could have quivered

V-ing perfect

I could have been quivering
you could have been quivering
she could have been quivering
we could have been quivering
you could have been quivering
they could have been quivering

Negation

Simple form

I could not quiver
you could not quiver
she could not quiver
we could not quiver
you could not quiver
they could not quiver

V-ing form

I could not be quivering
you could not be quivering
she could not be quivering
we could not be quivering
you could not be quivering
they could not be quivering

Perfect

I could not have quivered
you could not have quivered
she could not have quivered
we could not have quivered
you could not have quivered
they could not have quivered

V-ing perfect

I could not have been quivering
you could not have been quivering
she could not have been quivering
we could not have been quivering
you could not have been quivering
they could not have been quivering

Interrogative form

Simple form

could I quiver?
could you quiver?
could she quiver?
could we quiver?
could you quiver?
could they quiver?

V-ing form

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

Perfect

could I have quivered?
could you have quivered?
could she have quivered?
could we have quivered?
could you have quivered?
could they have quivered?

V-ing perfect

could I have been quivering?
could you have been quivering?
could she have been quivering?
could we have been quivering?
could you have been quivering?
could they have been quivering?

Interro-negative form

Simple form

could I not quiver?
could you not quiver?
could she not quiver?
could we not quiver?
could you not quiver?
could they not quiver?

V-ing form

could I not be quivering?
could you not be quivering?
could she not be quivering?
could we not be quivering?
could you not be quivering?
could they not be quivering?

Perfect

could I not have quivered?
could you not have quivered?
could she not have quivered?
could we not have quivered?
could you not have quivered?
could they not have quivered?

V-ing perfect

could I not have been quivering?
could you not have been quivering?
could she not have been quivering?
could we not have been quivering?
could you not have been quivering?
could they not have been quivering?

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