English verb conjugation MUST GRUMBLE

Regular verb: grumble - grumbled - grumbled

Affirmation

Simple form

I must grumble
you must grumble
he must grumble
we must grumble
you must grumble
they must grumble

V-ing form

I must be grumbling
you must be grumbling
he must be grumbling
we must be grumbling
you must be grumbling
they must be grumbling

Perfect

I must have grumbled
you must have grumbled
he must have grumbled
we must have grumbled
you must have grumbled
they must have grumbled

V-ing perfect

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

Negation

Simple form

I must not grumble
you must not grumble
he must not grumble
we must not grumble
you must not grumble
they must not grumble

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I grumble?
must you grumble?
must he grumble?
must we grumble?
must you grumble?
must they grumble?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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