English verb conjugation MUST CREASE

Regular verb: crease - creased - creased

Affirmation

Simple form

I must crease
you must crease
he must crease
we must crease
you must crease
they must crease

V-ing form

I must be creasing
you must be creasing
he must be creasing
we must be creasing
you must be creasing
they must be creasing

Perfect

I must have creased
you must have creased
he must have creased
we must have creased
you must have creased
they must have creased

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I crease?
must you crease?
must he crease?
must we crease?
must you crease?
must they crease?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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