English verb conjugation MUST SHACK

Regular verb: shack - shacked - shacked

Affirmation

Simple form

I must shack
you must shack
he must shack
we must shack
you must shack
they must shack

V-ing form

I must be shacking
you must be shacking
he must be shacking
we must be shacking
you must be shacking
they must be shacking

Perfect

I must have shacked
you must have shacked
he 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
he must have been shacking
we must have been shacking
you must have been shacking
they must have been shacking

Negation

Simple form

I must not shack
you must not shack
he must not shack
we must not shack
you must not shack
they must not shack

V-ing form

I must not be shacking
you must not be shacking
he must not be shacking
we must not be shacking
you must not be shacking
they must not be shacking

Perfect

I must not have shacked
you must not have shacked
he must not have shacked
we must not have shacked
you must not have shacked
they must not have shacked

V-ing perfect

I must not have been shacking
you must not have been shacking
he must not have been shacking
we must not have been shacking
you must not have been shacking
they must not have been shacking

Interrogative form

Simple form

must I shack?
must you shack?
must he shack?
must we shack?
must you shack?
must they shack?

V-ing form

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

Perfect

must I have shacked?
must you have shacked?
must he 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 he have been shacking?
must we have been shacking?
must you have been shacking?
must they have been shacking?

Interro-negative form

Simple form

must I not shack?
must you not shack?
must he not shack?
must we not shack?
must you not shack?
must they not shack?

V-ing form

must I not be shacking?
must you not be shacking?
must he not be shacking?
must we not be shacking?
must you not be shacking?
must they not be shacking?

Perfect

must I not have shacked?
must you not have shacked?
must he not have shacked?
must we not have shacked?
must you not have shacked?
must they not have shacked?

V-ing perfect

must I not have been shacking?
must you not have been shacking?
must he not have been shacking?
must we not have been shacking?
must you not have been shacking?
must they not have been shacking?

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