English verb conjugation MUST FORGET

Irregular verb: forget - forgot - forgotten

Affirmation

Simple form

I must forget
you must forget
he must forget
we must forget
you must forget
they must forget

V-ing form

I must be forgetting
you must be forgetting
he must be forgetting
we must be forgetting
you must be forgetting
they must be forgetting

Perfect

I must have forgotten
you must have forgotten
he must have forgotten
we must have forgotten
you must have forgotten
they must have forgotten

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I forget?
must you forget?
must he forget?
must we forget?
must you forget?
must they forget?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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