English verb conjugation MUST ENGROSS

Regular verb: engross - engrossed - engrossed

Affirmation

Simple form

I must engross
you must engross
he must engross
we must engross
you must engross
they must engross

V-ing form

I must be engrossing
you must be engrossing
he must be engrossing
we must be engrossing
you must be engrossing
they must be engrossing

Perfect

I must have engrossed
you must have engrossed
he must have engrossed
we must have engrossed
you must have engrossed
they must have engrossed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I engross?
must you engross?
must he engross?
must we engross?
must you engross?
must they engross?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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