English verb conjugation MUST SLACK

Regular verb: slack - slacked - slacked

Affirmation

Simple form

I must slack
you must slack
she must slack
we must slack
you must slack
they must slack

V-ing form

I must be slacking
you must be slacking
she must be slacking
we must be slacking
you must be slacking
they must be slacking

Perfect

I must have slacked
you must have slacked
she must have slacked
we must have slacked
you must have slacked
they must have slacked

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I slack?
must you slack?
must she slack?
must we slack?
must you slack?
must they slack?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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