could hem
Regular verb: hem - hemmed- hemmed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could hem
you could hem
she could hem
we could hem
you could hem
they could hem 	I could be hemming
you could be hemming
she could be hemming
we could be hemming
you could be hemming
they could be hemming	I could have hemmed
you could have hemmed
she could have hemmed
we could have hemmed
you could have hemmed
they could have hemmed	I could have been hemming
you could have been hemming
she could have been hemming
we could have been hemming
you could have been hemming
they could have been hemming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't hem
you couldn't hem
she couldn't hem
we couldn't hem
you couldn't hem
they couldn't hem 	I couldn't be hemming
you couldn't be hemming
she couldn't be hemming
we couldn't be hemming
you couldn't be hemming
they couldn't be hemming	I couldn't have hemmed
you couldn't have hemmed
she couldn't have hemmed
we couldn't have hemmed
you couldn't have hemmed
they couldn't have hemmed	I couldn't have been hemming
you couldn't have been hemming
she couldn't have been hemming
we couldn't have been hemming
you couldn't have been hemming
they couldn't have been hemming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I hem?
could you hem?
could she hem?
could we hem?
could you hem?
could they hem? 	could I be hemming?
could you be hemming?
could she be hemming?
could we be hemming?
could you be hemming?
could they be hemming? 	could I have hemmed?
could you have hemmed?
could she have hemmed?
could we have hemmed?
could you have hemmed?
could they have hemmed? 	could I have been hemming?
could you have been hemming?
could she have been hemming?
could we have been hemming?
could you have been hemming?
could they have been hemming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I hem?
couldn't you hem?
couldn't she hem?
couldn't we hem?
couldn't you hem?
couldn't they hem? 	couldn't I be hemming?
couldn't you be hemming?
couldn't she be hemming?
couldn't we be hemming?
couldn't you be hemming?
couldn't they be hemming? 	couldn't I have hemmed?
couldn't you have hemmed?
couldn't she have hemmed?
couldn't we have hemmed?
couldn't you have hemmed?
couldn't they have hemmed? 	couldn't I have been hemming?
couldn't you have been hemming?
couldn't she have been hemming?
couldn't we have been hemming?
couldn't you have been hemming?
couldn't they have been hemming?