English verb conjugation MUST SCUM

Regular verb: scum - scummed - scummed

Affirmation

Simple form

I must scum
you must scum
he must scum
we must scum
you must scum
they must scum

V-ing form

I must be scumming
you must be scumming
he must be scumming
we must be scumming
you must be scumming
they must be scumming

Perfect

I must have scummed
you must have scummed
he must have scummed
we must have scummed
you must have scummed
they must have scummed

V-ing perfect

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

Negation

Simple form

I must not scum
you must not scum
he must not scum
we must not scum
you must not scum
they must not scum

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I scum?
must you scum?
must he scum?
must we scum?
must you scum?
must they scum?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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