English verb conjugation MUST SKIPPER

Regular verb: skipper - skippered - skippered

Affirmation

Simple form

I must skipper
you must skipper
he must skipper
we must skipper
you must skipper
they must skipper

V-ing form

I must be skippering
you must be skippering
he must be skippering
we must be skippering
you must be skippering
they must be skippering

Perfect

I must have skippered
you must have skippered
he must have skippered
we must have skippered
you must have skippered
they must have skippered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I skipper?
must you skipper?
must he skipper?
must we skipper?
must you skipper?
must they skipper?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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