English verb conjugation MUST CURTAIL

Regular verb: curtail - curtailed - curtailed

Affirmation

Simple form

I must curtail
you must curtail
he must curtail
we must curtail
you must curtail
they must curtail

V-ing form

I must be curtailing
you must be curtailing
he must be curtailing
we must be curtailing
you must be curtailing
they must be curtailing

Perfect

I must have curtailed
you must have curtailed
he must have curtailed
we must have curtailed
you must have curtailed
they must have curtailed

V-ing perfect

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

Negation

Simple form

I must not curtail
you must not curtail
he must not curtail
we must not curtail
you must not curtail
they must not curtail

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I curtail?
must you curtail?
must he curtail?
must we curtail?
must you curtail?
must they curtail?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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