English verb conjugation MUST BUFF

Regular verb: buff - buffed - buffed

Affirmation

Simple form

I must buff
you must buff
he must buff
we must buff
you must buff
they must buff

V-ing form

I must be buffing
you must be buffing
he must be buffing
we must be buffing
you must be buffing
they must be buffing

Perfect

I must have buffed
you must have buffed
he 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
he must have been buffing
we must have been buffing
you must have been buffing
they must have been buffing

Negation

Simple form

I must not buff
you must not buff
he must not buff
we must not buff
you must not buff
they must not buff

V-ing form

I must not be buffing
you must not be buffing
he must not be buffing
we must not be buffing
you must not be buffing
they must not be buffing

Perfect

I must not have buffed
you must not have buffed
he must not have buffed
we must not have buffed
you must not have buffed
they must not have buffed

V-ing perfect

I must not have been buffing
you must not have been buffing
he must not have been buffing
we must not have been buffing
you must not have been buffing
they must not have been buffing

Interrogative form

Simple form

must I buff?
must you buff?
must he buff?
must we buff?
must you buff?
must they buff?

V-ing form

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

Perfect

must I have buffed?
must you have buffed?
must he 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 he have been buffing?
must we have been buffing?
must you have been buffing?
must they have been buffing?

Interro-negative form

Simple form

must I not buff?
must you not buff?
must he not buff?
must we not buff?
must you not buff?
must they not buff?

V-ing form

must I not be buffing?
must you not be buffing?
must he not be buffing?
must we not be buffing?
must you not be buffing?
must they not be buffing?

Perfect

must I not have buffed?
must you not have buffed?
must he not have buffed?
must we not have buffed?
must you not have buffed?
must they not have buffed?

V-ing perfect

must I not have been buffing?
must you not have been buffing?
must he not have been buffing?
must we not have been buffing?
must you not have been buffing?
must they not have been buffing?

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