English verb conjugation MUST LOOK

Regular verb: look - looked - looked

Affirmation

Simple form

I must look
you must look
he must look
we must look
you must look
they must look

V-ing form

I must be looking
you must be looking
he must be looking
we must be looking
you must be looking
they must be looking

Perfect

I must have looked
you must have looked
he must have looked
we must have looked
you must have looked
they must have looked

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I look?
must you look?
must he look?
must we look?
must you look?
must they look?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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