English verb conjugation MUST SHACK

Regular verb: shack - shacked - shacked

Affirmation

Simple form

I must shack
you must shack
she must shack
we must shack
you must shack
they must shack

V-ing form

I must be shacking
you must be shacking
she must be shacking
we must be shacking
you must be shacking
they must be shacking

Perfect

I must have shacked
you must have shacked
she must have shacked
we must have shacked
you must have shacked
they must have shacked

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I shack?
must you shack?
must she shack?
must we shack?
must you shack?
must they shack?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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