English verb conjugation MUST MUSS

Regular verb: muss - mussed - mussed

Affirmation

Simple form

I must muss
you must muss
he must muss
we must muss
you must muss
they must muss

V-ing form

I must be mussing
you must be mussing
he must be mussing
we must be mussing
you must be mussing
they must be mussing

Perfect

I must have mussed
you must have mussed
he must have mussed
we must have mussed
you must have mussed
they must have mussed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I muss?
must you muss?
must he muss?
must we muss?
must you muss?
must they muss?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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