English verb conjugation MUST GUM

Regular verb: gum - gummed - gummed

Affirmation

Simple form

I must gum
you must gum
he must gum
we must gum
you must gum
they must gum

V-ing form

I must be gumming
you must be gumming
he must be gumming
we must be gumming
you must be gumming
they must be gumming

Perfect

I must have gummed
you must have gummed
he must have gummed
we must have gummed
you must have gummed
they must have gummed

V-ing perfect

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

Negation

Simple form

I must not gum
you must not gum
he must not gum
we must not gum
you must not gum
they must not gum

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I gum?
must you gum?
must he gum?
must we gum?
must you gum?
must they gum?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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