English verb conjugation MUST MARK

Regular verb: mark - marked - marked

Affirmation

Simple form

I must mark
you must mark
she must mark
we must mark
you must mark
they must mark

V-ing form

I must be marking
you must be marking
she must be marking
we must be marking
you must be marking
they must be marking

Perfect

I must have marked
you must have marked
she must have marked
we must have marked
you must have marked
they must have marked

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I mark?
must you mark?
must she mark?
must we mark?
must you mark?
must they mark?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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