male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation MUST STAY
Regular verb: stay - stayed - stayed
Affirmation
Simple form
I must stayyou must stay
she must stay
we must stay
you must stay
they must stay
V-ing form
I must be stayingyou must be staying
she must be staying
we must be staying
you must be staying
they must be staying
Perfect
I must have stayedyou must have stayed
she must have stayed
we must have stayed
you must have stayed
they must have stayed
V-ing perfect
I must have been stayingyou must have been staying
she must have been staying
we must have been staying
you must have been staying
they must have been staying
Negation
Simple form
I must not stayyou must not stay
she must not stay
we must not stay
you must not stay
they must not stay
V-ing form
I must not be stayingyou must not be staying
she must not be staying
we must not be staying
you must not be staying
they must not be staying
Perfect
I must not have stayedyou must not have stayed
she must not have stayed
we must not have stayed
you must not have stayed
they must not have stayed
V-ing perfect
I must not have been stayingyou must not have been staying
she must not have been staying
we must not have been staying
you must not have been staying
they must not have been staying
Interrogative form
Simple form
must I stay?must you stay?
must she stay?
must we stay?
must you stay?
must they stay?
V-ing form
must I be staying?must you be staying?
must she be staying?
must we be staying?
must you be staying?
must they be staying?
Perfect
must I have stayed?must you have stayed?
must she have stayed?
must we have stayed?
must you have stayed?
must they have stayed?
V-ing perfect
must I have been staying?must you have been staying?
must she have been staying?
must we have been staying?
must you have been staying?
must they have been staying?
Interro-negative form
Simple form
must I not stay?must you not stay?
must she not stay?
must we not stay?
must you not stay?
must they not stay?
V-ing form
must I not be staying?must you not be staying?
must she not be staying?
must we not be staying?
must you not be staying?
must they not be staying?
Perfect
must I not have stayed?must you not have stayed?
must she not have stayed?
must we not have stayed?
must you not have stayed?
must they not have stayed?
V-ing perfect
must I not have been staying?must you not have been staying?
must she not have been staying?
must we not have been staying?
must you not have been staying?
must they not have been staying?