English verb conjugation
COULD SEW

Irregular verb: sew - sewed - sewn

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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