English verb conjugation MUST INTERFUSE

Regular verb: interfuse - interfused - interfused

Affirmation

Simple form

I must interfuse
you must interfuse
he must interfuse
we must interfuse
you must interfuse
they must interfuse

V-ing form

I must be interfusing
you must be interfusing
he must be interfusing
we must be interfusing
you must be interfusing
they must be interfusing

Perfect

I must have interfused
you must have interfused
he must have interfused
we must have interfused
you must have interfused
they must have interfused

V-ing perfect

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

Negation

Simple form

I must not interfuse
you must not interfuse
he must not interfuse
we must not interfuse
you must not interfuse
they must not interfuse

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I interfuse?
must you interfuse?
must he interfuse?
must we interfuse?
must you interfuse?
must they interfuse?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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