English verb conjugation MUST SKETCH

Regular verb: sketch - sketched - sketched

Affirmation

Simple form

I must sketch
you must sketch
he must sketch
we must sketch
you must sketch
they must sketch

V-ing form

I must be sketching
you must be sketching
he must be sketching
we must be sketching
you must be sketching
they must be sketching

Perfect

I must have sketched
you must have sketched
he 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
he must have been sketching
we must have been sketching
you must have been sketching
they must have been sketching

Negation

Simple form

I mustn't sketch
you mustn't sketch
he mustn't sketch
we mustn't sketch
you mustn't sketch
they mustn't sketch

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I sketch?
must you sketch?
must he sketch?
must we sketch?
must you sketch?
must they sketch?

V-ing form

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

Perfect

must I have sketched?
must you have sketched?
must he 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 he have been sketching?
must we have been sketching?
must you have been sketching?
must they have been sketching?

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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