English verb conjugation MUST DRUM

Regular verb: drum - drummed - drummed

Affirmation

Simple form

I must drum
you must drum
he must drum
we must drum
you must drum
they must drum

V-ing form

I must be drumming
you must be drumming
he must be drumming
we must be drumming
you must be drumming
they must be drumming

Perfect

I must have drummed
you must have drummed
he must have drummed
we must have drummed
you must have drummed
they must have drummed

V-ing perfect

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

Negation

Simple form

I must not drum
you must not drum
he must not drum
we must not drum
you must not drum
they must not drum

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I drum?
must you drum?
must he drum?
must we drum?
must you drum?
must they drum?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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