English verb conjugation
MUST SEW

Irregular verb: sew - sewed - sewn

Affirmation

Simple form	V-ing form
I must sew you must sew he must sew we must sew you must sew they must sew	I must be sewing you must be sewing he must be sewing we must be sewing you must be sewing they must be sewing
Perfect	V-ing perfect
I must have sewn you must have sewn he must have sewn we must have sewn you must have sewn they must have sewn	I must have been sewing you must have been sewing he must have been sewing we must have been sewing you must have been sewing they must have been sewing

Negation

Simple form	V-ing form
I mustn't sew you mustn't sew he mustn't sew we mustn't sew you mustn't sew they mustn't sew	I mustn't be sewing you mustn't be sewing he mustn't be sewing we mustn't be sewing you mustn't be sewing they mustn't be sewing
Perfect	V-ing perfect
I mustn't have sewn you mustn't have sewn he mustn't have sewn we mustn't have sewn you mustn't have sewn they mustn't have sewn	I mustn't have been sewing you mustn't have been sewing he mustn't have been sewing we mustn't have been sewing you mustn't have been sewing they mustn't have been sewing

Interrogative form

Simple form	V-ing form
must I sew? must you sew? must he sew? must we sew? must you sew? must they sew?	must I be sewing? must you be sewing? must he be sewing? must we be sewing? must you be sewing? must they be sewing?
Perfect	V-ing perfect
must I have sewn? must you have sewn? must he have sewn? must we have sewn? must you have sewn? must they have sewn?	must I have been sewing? must you have been sewing? must he have been sewing? must we have been sewing? must you have been sewing? must they have been sewing?

Interro-negative form

Simple form	V-ing form
mustn't I sew? mustn't you sew? mustn't he sew? mustn't we sew? mustn't you sew? mustn't they sew?	mustn't I be sewing? mustn't you be sewing? mustn't he be sewing? mustn't we be sewing? mustn't you be sewing? mustn't they be sewing?
Perfect	V-ing perfect
mustn't I have sewn? mustn't you have sewn? mustn't he have sewn? mustn't we have sewn? mustn't you have sewn? mustn't they have sewn?	mustn't I have been sewing? mustn't you have been sewing? mustn't he have been sewing? mustn't we have been sewing? mustn't you have been sewing? mustn't they have been sewing?