English verb conjugation MUST HUFF

Regular verb: huff - huffed - huffed

Affirmation

Simple form

I must huff
you must huff
he must huff
we must huff
you must huff
they must huff

V-ing form

I must be huffing
you must be huffing
he must be huffing
we must be huffing
you must be huffing
they must be huffing

Perfect

I must have huffed
you must have huffed
he must have huffed
we must have huffed
you must have huffed
they must have huffed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I huff?
must you huff?
must he huff?
must we huff?
must you huff?
must they huff?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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