English verb conjugation MUST PURCHASE

Regular verb: purchase - purchased - purchased

Affirmation

Simple form

I must purchase
you must purchase
he must purchase
we must purchase
you must purchase
they must purchase

V-ing form

I must be purchasing
you must be purchasing
he must be purchasing
we must be purchasing
you must be purchasing
they must be purchasing

Perfect

I must have purchased
you must have purchased
he must have purchased
we must have purchased
you must have purchased
they must have purchased

V-ing perfect

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

Negation

Simple form

I must not purchase
you must not purchase
he must not purchase
we must not purchase
you must not purchase
they must not purchase

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I purchase?
must you purchase?
must he purchase?
must we purchase?
must you purchase?
must they purchase?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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