English verb conjugation MUST PERFUSE

Regular verb: perfuse - perfused - perfused

Affirmation

Simple form

I must perfuse
you must perfuse
she must perfuse
we must perfuse
you must perfuse
they must perfuse

V-ing form

I must be perfusing
you must be perfusing
she must be perfusing
we must be perfusing
you must be perfusing
they must be perfusing

Perfect

I must have perfused
you must have perfused
she must have perfused
we must have perfused
you must have perfused
they must have perfused

V-ing perfect

I must have been perfusing
you must have been perfusing
she must have been perfusing
we must have been perfusing
you must have been perfusing
they must have been perfusing

Negation

Simple form

I must not perfuse
you must not perfuse
she must not perfuse
we must not perfuse
you must not perfuse
they must not perfuse

V-ing form

I must not be perfusing
you must not be perfusing
she must not be perfusing
we must not be perfusing
you must not be perfusing
they must not be perfusing

Perfect

I must not have perfused
you must not have perfused
she must not have perfused
we must not have perfused
you must not have perfused
they must not have perfused

V-ing perfect

I must not have been perfusing
you must not have been perfusing
she must not have been perfusing
we must not have been perfusing
you must not have been perfusing
they must not have been perfusing

Interrogative form

Simple form

must I perfuse?
must you perfuse?
must she perfuse?
must we perfuse?
must you perfuse?
must they perfuse?

V-ing form

must I be perfusing?
must you be perfusing?
must she be perfusing?
must we be perfusing?
must you be perfusing?
must they be perfusing?

Perfect

must I have perfused?
must you have perfused?
must she have perfused?
must we have perfused?
must you have perfused?
must they have perfused?

V-ing perfect

must I have been perfusing?
must you have been perfusing?
must she have been perfusing?
must we have been perfusing?
must you have been perfusing?
must they have been perfusing?

Interro-negative form

Simple form

must I not perfuse?
must you not perfuse?
must she not perfuse?
must we not perfuse?
must you not perfuse?
must they not perfuse?

V-ing form

must I not be perfusing?
must you not be perfusing?
must she not be perfusing?
must we not be perfusing?
must you not be perfusing?
must they not be perfusing?

Perfect

must I not have perfused?
must you not have perfused?
must she not have perfused?
must we not have perfused?
must you not have perfused?
must they not have perfused?

V-ing perfect

must I not have been perfusing?
must you not have been perfusing?
must she not have been perfusing?
must we not have been perfusing?
must you not have been perfusing?
must they not have been perfusing?

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