English verb conjugation MUST USE

Regular verb: use - used - used

Affirmation

Simple form

I must use
you must use
she must use
we must use
you must use
they must use

V-ing form

I must be using
you must be using
she must be using
we must be using
you must be using
they must be using

Perfect

I must have used
you must have used
she must have used
we must have used
you must have used
they must have used

V-ing perfect

I must have been using
you must have been using
she must have been using
we must have been using
you must have been using
they must have been using

Negation

Simple form

I must not use
you must not use
she must not use
we must not use
you must not use
they must not use

V-ing form

I must not be using
you must not be using
she must not be using
we must not be using
you must not be using
they must not be using

Perfect

I must not have used
you must not have used
she must not have used
we must not have used
you must not have used
they must not have used

V-ing perfect

I must not have been using
you must not have been using
she must not have been using
we must not have been using
you must not have been using
they must not have been using

Interrogative form

Simple form

must I use?
must you use?
must she use?
must we use?
must you use?
must they use?

V-ing form

must I be using?
must you be using?
must she be using?
must we be using?
must you be using?
must they be using?

Perfect

must I have used?
must you have used?
must she have used?
must we have used?
must you have used?
must they have used?

V-ing perfect

must I have been using?
must you have been using?
must she have been using?
must we have been using?
must you have been using?
must they have been using?

Interro-negative form

Simple form

must I not use?
must you not use?
must she not use?
must we not use?
must you not use?
must they not use?

V-ing form

must I not be using?
must you not be using?
must she not be using?
must we not be using?
must you not be using?
must they not be using?

Perfect

must I not have used?
must you not have used?
must she not have used?
must we not have used?
must you not have used?
must they not have used?

V-ing perfect

must I not have been using?
must you not have been using?
must she not have been using?
must we not have been using?
must you not have been using?
must they not have been using?

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