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 mustn't trephine
you mustn't trephine
he mustn't trephine
we mustn't trephine
you mustn't trephine
they mustn't trephine

V-ing form

I mustn't be trephining
you mustn't be trephining
he mustn't be trephining
we mustn't be trephining
you mustn't be trephining
they mustn't be trephining

Perfect

I mustn't have trephined
you mustn't have trephined
he mustn't have trephined
we mustn't have trephined
you mustn't have trephined
they mustn't have trephined

V-ing perfect

I mustn't have been trephining
you mustn't have been trephining
he mustn't have been trephining
we mustn't have been trephining
you mustn't have been trephining
they mustn't 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

mustn't I trephine?
mustn't you trephine?
mustn't he trephine?
mustn't we trephine?
mustn't you trephine?
mustn't they trephine?

V-ing form

mustn't I be trephining?
mustn't you be trephining?
mustn't he be trephining?
mustn't we be trephining?
mustn't you be trephining?
mustn't they be trephining?

Perfect

mustn't I have trephined?
mustn't you have trephined?
mustn't he have trephined?
mustn't we have trephined?
mustn't you have trephined?
mustn't they have trephined?

V-ing perfect

mustn't I have been trephining?
mustn't you have been trephining?
mustn't he have been trephining?
mustn't we have been trephining?
mustn't you have been trephining?
mustn't they have been trephining?

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