English verb conjugation MUST ENGULF

Regular verb: engulf - engulfed - engulfed

Affirmation

Simple form

I must engulf
you must engulf
she must engulf
we must engulf
you must engulf
they must engulf

V-ing form

I must be engulfing
you must be engulfing
she must be engulfing
we must be engulfing
you must be engulfing
they must be engulfing

Perfect

I must have engulfed
you must have engulfed
she must have engulfed
we must have engulfed
you must have engulfed
they must have engulfed

V-ing perfect

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

Negation

Simple form

I mustn't engulf
you mustn't engulf
she mustn't engulf
we mustn't engulf
you mustn't engulf
they mustn't engulf

V-ing form

I mustn't be engulfing
you mustn't be engulfing
she mustn't be engulfing
we mustn't be engulfing
you mustn't be engulfing
they mustn't be engulfing

Perfect

I mustn't have engulfed
you mustn't have engulfed
she mustn't have engulfed
we mustn't have engulfed
you mustn't have engulfed
they mustn't have engulfed

V-ing perfect

I mustn't have been engulfing
you mustn't have been engulfing
she mustn't have been engulfing
we mustn't have been engulfing
you mustn't have been engulfing
they mustn't have been engulfing

Interrogative form

Simple form

must I engulf?
must you engulf?
must she engulf?
must we engulf?
must you engulf?
must they engulf?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

mustn't I engulf?
mustn't you engulf?
mustn't she engulf?
mustn't we engulf?
mustn't you engulf?
mustn't they engulf?

V-ing form

mustn't I be engulfing?
mustn't you be engulfing?
mustn't she be engulfing?
mustn't we be engulfing?
mustn't you be engulfing?
mustn't they be engulfing?

Perfect

mustn't I have engulfed?
mustn't you have engulfed?
mustn't she have engulfed?
mustn't we have engulfed?
mustn't you have engulfed?
mustn't they have engulfed?

V-ing perfect

mustn't I have been engulfing?
mustn't you have been engulfing?
mustn't she have been engulfing?
mustn't we have been engulfing?
mustn't you have been engulfing?
mustn't they have been engulfing?

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