English verb conjugation MUST QUAIL

Regular verb: quail - quailed - quailed

Affirmation

Simple form

I must quail
you must quail
he must quail
we must quail
you must quail
they must quail

V-ing form

I must be quailing
you must be quailing
he must be quailing
we must be quailing
you must be quailing
they must be quailing

Perfect

I must have quailed
you must have quailed
he must have quailed
we must have quailed
you must have quailed
they must have quailed

V-ing perfect

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

Negation

Simple form

I must not quail
you must not quail
he must not quail
we must not quail
you must not quail
they must not quail

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I quail?
must you quail?
must he quail?
must we quail?
must you quail?
must they quail?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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