English verb conjugation MUST FESTER

Regular verb: fester - festered - festered

Affirmation

Simple form

I must fester
you must fester
he must fester
we must fester
you must fester
they must fester

V-ing form

I must be festering
you must be festering
he must be festering
we must be festering
you must be festering
they must be festering

Perfect

I must have festered
you must have festered
he must have festered
we must have festered
you must have festered
they must have festered

V-ing perfect

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

Negation

Simple form

I must not fester
you must not fester
he must not fester
we must not fester
you must not fester
they must not fester

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I fester?
must you fester?
must he fester?
must we fester?
must you fester?
must they fester?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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