English verb conjugation MUST BUFF

Regular verb: buff - buffed - buffed

Affirmation

Simple form

I must buff
you must buff
she must buff
we must buff
you must buff
they must buff

V-ing form

I must be buffing
you must be buffing
she must be buffing
we must be buffing
you must be buffing
they must be buffing

Perfect

I must have buffed
you must have buffed
she must have buffed
we must have buffed
you must have buffed
they must have buffed

V-ing perfect

I must have been buffing
you must have been buffing
she must have been buffing
we must have been buffing
you must have been buffing
they must have been buffing

Negation

Simple form

I mustn't buff
you mustn't buff
she mustn't buff
we mustn't buff
you mustn't buff
they mustn't buff

V-ing form

I mustn't be buffing
you mustn't be buffing
she mustn't be buffing
we mustn't be buffing
you mustn't be buffing
they mustn't be buffing

Perfect

I mustn't have buffed
you mustn't have buffed
she mustn't have buffed
we mustn't have buffed
you mustn't have buffed
they mustn't have buffed

V-ing perfect

I mustn't have been buffing
you mustn't have been buffing
she mustn't have been buffing
we mustn't have been buffing
you mustn't have been buffing
they mustn't have been buffing

Interrogative form

Simple form

must I buff?
must you buff?
must she buff?
must we buff?
must you buff?
must they buff?

V-ing form

must I be buffing?
must you be buffing?
must she be buffing?
must we be buffing?
must you be buffing?
must they be buffing?

Perfect

must I have buffed?
must you have buffed?
must she have buffed?
must we have buffed?
must you have buffed?
must they have buffed?

V-ing perfect

must I have been buffing?
must you have been buffing?
must she have been buffing?
must we have been buffing?
must you have been buffing?
must they have been buffing?

Interro-negative form

Simple form

mustn't I buff?
mustn't you buff?
mustn't she buff?
mustn't we buff?
mustn't you buff?
mustn't they buff?

V-ing form

mustn't I be buffing?
mustn't you be buffing?
mustn't she be buffing?
mustn't we be buffing?
mustn't you be buffing?
mustn't they be buffing?

Perfect

mustn't I have buffed?
mustn't you have buffed?
mustn't she have buffed?
mustn't we have buffed?
mustn't you have buffed?
mustn't they have buffed?

V-ing perfect

mustn't I have been buffing?
mustn't you have been buffing?
mustn't she have been buffing?
mustn't we have been buffing?
mustn't you have been buffing?
mustn't they have been buffing?

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