English verb conjugation MUST SKETCH

Regular verb: sketch - sketched - sketched

Affirmation

Simple form

I must sketch
you must sketch
she must sketch
we must sketch
you must sketch
they must sketch

V-ing form

I must be sketching
you must be sketching
she must be sketching
we must be sketching
you must be sketching
they must be sketching

Perfect

I must have sketched
you must have sketched
she must have sketched
we must have sketched
you must have sketched
they must have sketched

V-ing perfect

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

Negation

Simple form

I must not sketch
you must not sketch
she must not sketch
we must not sketch
you must not sketch
they must not sketch

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I sketch?
must you sketch?
must she sketch?
must we sketch?
must you sketch?
must they sketch?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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