English verb conjugation MUST STUFF

Regular verb: stuff - stuffed - stuffed

Affirmation

Simple form

I must stuff
you must stuff
he must stuff
we must stuff
you must stuff
they must stuff

V-ing form

I must be stuffing
you must be stuffing
he must be stuffing
we must be stuffing
you must be stuffing
they must be stuffing

Perfect

I must have stuffed
you must have stuffed
he must have stuffed
we must have stuffed
you must have stuffed
they must have stuffed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I stuff?
must you stuff?
must he stuff?
must we stuff?
must you stuff?
must they stuff?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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