English verb conjugation MUST FLACK

Regular verb: flack - flacked - flacked

Affirmation

Simple form

I must flack
you must flack
she must flack
we must flack
you must flack
they must flack

V-ing form

I must be flacking
you must be flacking
she must be flacking
we must be flacking
you must be flacking
they must be flacking

Perfect

I must have flacked
you must have flacked
she must have flacked
we must have flacked
you must have flacked
they must have flacked

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I flack?
must you flack?
must she flack?
must we flack?
must you flack?
must they flack?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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