English verb conjugation MUST UNSTITCH

Regular verb: unstitch - unstitched - unstitched

Affirmation

Simple form

I must unstitch
you must unstitch
he must unstitch
we must unstitch
you must unstitch
they must unstitch

V-ing form

I must be unstitching
you must be unstitching
he must be unstitching
we must be unstitching
you must be unstitching
they must be unstitching

Perfect

I must have unstitched
you must have unstitched
he must have unstitched
we must have unstitched
you must have unstitched
they must have unstitched

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I unstitch?
must you unstitch?
must he unstitch?
must we unstitch?
must you unstitch?
must they unstitch?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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