English verb conjugation MUST STOPPER

Regular verb: stopper - stoppered - stoppered

Affirmation

Simple form

I must stopper
you must stopper
he must stopper
we must stopper
you must stopper
they must stopper

V-ing form

I must be stoppering
you must be stoppering
he must be stoppering
we must be stoppering
you must be stoppering
they must be stoppering

Perfect

I must have stoppered
you must have stoppered
he must have stoppered
we must have stoppered
you must have stoppered
they must have stoppered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I stopper?
must you stopper?
must he stopper?
must we stopper?
must you stopper?
must they stopper?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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