English verb conjugation MUST CROUCH

Regular verb: crouch - crouched - crouched

Affirmation

Simple form

I must crouch
you must crouch
he must crouch
we must crouch
you must crouch
they must crouch

V-ing form

I must be crouching
you must be crouching
he must be crouching
we must be crouching
you must be crouching
they must be crouching

Perfect

I must have crouched
you must have crouched
he must have crouched
we must have crouched
you must have crouched
they must have crouched

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I crouch?
must you crouch?
must he crouch?
must we crouch?
must you crouch?
must they crouch?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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