English verb conjugation MUST TACK

Regular verb: tack - tacked - tacked

Affirmation

Simple form

I must tack
you must tack
he must tack
we must tack
you must tack
they must tack

V-ing form

I must be tacking
you must be tacking
he must be tacking
we must be tacking
you must be tacking
they must be tacking

Perfect

I must have tacked
you must have tacked
he must have tacked
we must have tacked
you must have tacked
they must have tacked

V-ing perfect

I must have been tacking
you must have been tacking
he must have been tacking
we must have been tacking
you must have been tacking
they must have been tacking

Negation

Simple form

I mustn't tack
you mustn't tack
he mustn't tack
we mustn't tack
you mustn't tack
they mustn't tack

V-ing form

I mustn't be tacking
you mustn't be tacking
he mustn't be tacking
we mustn't be tacking
you mustn't be tacking
they mustn't be tacking

Perfect

I mustn't have tacked
you mustn't have tacked
he mustn't have tacked
we mustn't have tacked
you mustn't have tacked
they mustn't have tacked

V-ing perfect

I mustn't have been tacking
you mustn't have been tacking
he mustn't have been tacking
we mustn't have been tacking
you mustn't have been tacking
they mustn't have been tacking

Interrogative form

Simple form

must I tack?
must you tack?
must he tack?
must we tack?
must you tack?
must they tack?

V-ing form

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

Perfect

must I have tacked?
must you have tacked?
must he have tacked?
must we have tacked?
must you have tacked?
must they have tacked?

V-ing perfect

must I have been tacking?
must you have been tacking?
must he have been tacking?
must we have been tacking?
must you have been tacking?
must they have been tacking?

Interro-negative form

Simple form

mustn't I tack?
mustn't you tack?
mustn't he tack?
mustn't we tack?
mustn't you tack?
mustn't they tack?

V-ing form

mustn't I be tacking?
mustn't you be tacking?
mustn't he be tacking?
mustn't we be tacking?
mustn't you be tacking?
mustn't they be tacking?

Perfect

mustn't I have tacked?
mustn't you have tacked?
mustn't he have tacked?
mustn't we have tacked?
mustn't you have tacked?
mustn't they have tacked?

V-ing perfect

mustn't I have been tacking?
mustn't you have been tacking?
mustn't he have been tacking?
mustn't we have been tacking?
mustn't you have been tacking?
mustn't they have been tacking?

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