English verb conjugation MUST STAY

Regular verb: stay - stayed - stayed

Affirmation

Simple form

I must stay
you must stay
he must stay
we must stay
you must stay
they must stay

V-ing form

I must be staying
you must be staying
he must be staying
we must be staying
you must be staying
they must be staying

Perfect

I must have stayed
you must have stayed
he must have stayed
we must have stayed
you must have stayed
they must have stayed

V-ing perfect

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

Negation

Simple form

I mustn't stay
you mustn't stay
he mustn't stay
we mustn't stay
you mustn't stay
they mustn't stay

V-ing form

I mustn't be staying
you mustn't be staying
he mustn't be staying
we mustn't be staying
you mustn't be staying
they mustn't be staying

Perfect

I mustn't have stayed
you mustn't have stayed
he mustn't have stayed
we mustn't have stayed
you mustn't have stayed
they mustn't have stayed

V-ing perfect

I mustn't have been staying
you mustn't have been staying
he mustn't have been staying
we mustn't have been staying
you mustn't have been staying
they mustn't have been staying

Interrogative form

Simple form

must I stay?
must you stay?
must he stay?
must we stay?
must you stay?
must they stay?

V-ing form

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

Perfect

must I have stayed?
must you have stayed?
must he 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 he have been staying?
must we have been staying?
must you have been staying?
must they have been staying?

Interro-negative form

Simple form

mustn't I stay?
mustn't you stay?
mustn't he stay?
mustn't we stay?
mustn't you stay?
mustn't they stay?

V-ing form

mustn't I be staying?
mustn't you be staying?
mustn't he be staying?
mustn't we be staying?
mustn't you be staying?
mustn't they be staying?

Perfect

mustn't I have stayed?
mustn't you have stayed?
mustn't he have stayed?
mustn't we have stayed?
mustn't you have stayed?
mustn't they have stayed?

V-ing perfect

mustn't I have been staying?
mustn't you have been staying?
mustn't he have been staying?
mustn't we have been staying?
mustn't you have been staying?
mustn't they have been staying?

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