English verb conjugation MUST TREPHINE

Regular verb: trephine - trephined - trephined

Affirmation

Simple form

I must trephine
you must trephine
he must trephine
we must trephine
you must trephine
they must trephine

V-ing form

I must be trephining
you must be trephining
he must be trephining
we must be trephining
you must be trephining
they must be trephining

Perfect

I must have trephined
you must have trephined
he must have trephined
we must have trephined
you must have trephined
they must have trephined

V-ing perfect

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

Negation

Simple form

I must not trephine
you must not trephine
he must not trephine
we must not trephine
you must not trephine
they must not trephine

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I trephine?
must you trephine?
must he trephine?
must we trephine?
must you trephine?
must they trephine?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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