could sew
Irregular verb: sew - sewed- sewn

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