English verb conjugation MUST STAMP

Regular verb: stamp - stamped - stamped

Affirmation

Simple form

I must stamp
you must stamp
she must stamp
we must stamp
you must stamp
they must stamp

V-ing form

I must be stamping
you must be stamping
she must be stamping
we must be stamping
you must be stamping
they must be stamping

Perfect

I must have stamped
you must have stamped
she must have stamped
we must have stamped
you must have stamped
they must have stamped

V-ing perfect

I must have been stamping
you must have been stamping
she must have been stamping
we must have been stamping
you must have been stamping
they must have been stamping

Negation

Simple form

I mustn't stamp
you mustn't stamp
she mustn't stamp
we mustn't stamp
you mustn't stamp
they mustn't stamp

V-ing form

I mustn't be stamping
you mustn't be stamping
she mustn't be stamping
we mustn't be stamping
you mustn't be stamping
they mustn't be stamping

Perfect

I mustn't have stamped
you mustn't have stamped
she mustn't have stamped
we mustn't have stamped
you mustn't have stamped
they mustn't have stamped

V-ing perfect

I mustn't have been stamping
you mustn't have been stamping
she mustn't have been stamping
we mustn't have been stamping
you mustn't have been stamping
they mustn't have been stamping

Interrogative form

Simple form

must I stamp?
must you stamp?
must she stamp?
must we stamp?
must you stamp?
must they stamp?

V-ing form

must I be stamping?
must you be stamping?
must she be stamping?
must we be stamping?
must you be stamping?
must they be stamping?

Perfect

must I have stamped?
must you have stamped?
must she have stamped?
must we have stamped?
must you have stamped?
must they have stamped?

V-ing perfect

must I have been stamping?
must you have been stamping?
must she have been stamping?
must we have been stamping?
must you have been stamping?
must they have been stamping?

Interro-negative form

Simple form

mustn't I stamp?
mustn't you stamp?
mustn't she stamp?
mustn't we stamp?
mustn't you stamp?
mustn't they stamp?

V-ing form

mustn't I be stamping?
mustn't you be stamping?
mustn't she be stamping?
mustn't we be stamping?
mustn't you be stamping?
mustn't they be stamping?

Perfect

mustn't I have stamped?
mustn't you have stamped?
mustn't she have stamped?
mustn't we have stamped?
mustn't you have stamped?
mustn't they have stamped?

V-ing perfect

mustn't I have been stamping?
mustn't you have been stamping?
mustn't she have been stamping?
mustn't we have been stamping?
mustn't you have been stamping?
mustn't they have been stamping?

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