English verb conjugation COULD QUAIL

Regular verb: quail - quailed - quailed

Affirmation

Simple form

I could quail
you could quail
he could quail
we could quail
you could quail
they could quail

V-ing form

I could be quailing
you could be quailing
he could be quailing
we could be quailing
you could be quailing
they could be quailing

Perfect

I could have quailed
you could have quailed
he could have quailed
we could have quailed
you could have quailed
they could have quailed

V-ing perfect

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

Negation

Simple form

I could not quail
you could not quail
he could not quail
we could not quail
you could not quail
they could not quail

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I quail?
could you quail?
could he quail?
could we quail?
could you quail?
could they quail?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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