English verb conjugation MUST BACKSTITCH

Regular verb: backstitch - backstitched - backstitched

Affirmation

Simple form

I must backstitch
you must backstitch
he must backstitch
we must backstitch
you must backstitch
they must backstitch

V-ing form

I must be backstitching
you must be backstitching
he must be backstitching
we must be backstitching
you must be backstitching
they must be backstitching

Perfect

I must have backstitched
you must have backstitched
he must have backstitched
we must have backstitched
you must have backstitched
they must have backstitched

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I backstitch?
must you backstitch?
must he backstitch?
must we backstitch?
must you backstitch?
must they backstitch?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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