English verb conjugation MUST SWIM

Irregular verb: swim - swam - swum

Affirmation

Simple form

I must swim
you must swim
he must swim
we must swim
you must swim
they must swim

V-ing form

I must be swimming
you must be swimming
he must be swimming
we must be swimming
you must be swimming
they must be swimming

Perfect

I must have swum
you must have swum
he must have swum
we must have swum
you must have swum
they must have swum

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I swim?
must you swim?
must he swim?
must we swim?
must you swim?
must they swim?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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