English verb conjugation COULD QUAVER

Regular verb: quaver - quavered - quavered

Affirmation

Simple form

I could quaver
you could quaver
he could quaver
we could quaver
you could quaver
they could quaver

V-ing form

I could be quavering
you could be quavering
he could be quavering
we could be quavering
you could be quavering
they could be quavering

Perfect

I could have quavered
you could have quavered
he could have quavered
we could have quavered
you could have quavered
they could have quavered

V-ing perfect

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

Negation

Simple form

I could not quaver
you could not quaver
he could not quaver
we could not quaver
you could not quaver
they could not quaver

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I quaver?
could you quaver?
could he quaver?
could we quaver?
could you quaver?
could they quaver?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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