English verb conjugation MUST STIR

Regular verb: stir - stirred - stirred

Affirmation

Simple form

I must stir
you must stir
he must stir
we must stir
you must stir
they must stir

V-ing form

I must be stirring
you must be stirring
he must be stirring
we must be stirring
you must be stirring
they must be stirring

Perfect

I must have stirred
you must have stirred
he must have stirred
we must have stirred
you must have stirred
they must have stirred

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I stir?
must you stir?
must he stir?
must we stir?
must you stir?
must they stir?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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