English verb conjugation MUST SACK

Regular verb: sack - sacked - sacked

Affirmation

Simple form

I must sack
you must sack
she must sack
we must sack
you must sack
they must sack

V-ing form

I must be sacking
you must be sacking
she must be sacking
we must be sacking
you must be sacking
they must be sacking

Perfect

I must have sacked
you must have sacked
she must have sacked
we must have sacked
you must have sacked
they must have sacked

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I sack?
must you sack?
must she sack?
must we sack?
must you sack?
must they sack?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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