English verb conjugation COULD QUAIL

Regular verb: quail - quailed - quailed

Affirmation

Simple form

I could quail
you could quail
she could quail
we could quail
you could quail
they could quail

V-ing form

I could be quailing
you could be quailing
she could be quailing
we could be quailing
you could be quailing
they could be quailing

Perfect

I could have quailed
you could have quailed
she 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
she could have been quailing
we could have been quailing
you could have been quailing
they could have been quailing

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I quail?
could you quail?
could she quail?
could we quail?
could you quail?
could they quail?

V-ing form

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

Perfect

could I have quailed?
could you have quailed?
could she 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 she have been quailing?
could we have been quailing?
could you have been quailing?
could they have been quailing?

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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