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 mustn't purchase
you mustn't purchase
he mustn't purchase
we mustn't purchase
you mustn't purchase
they mustn't purchase

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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