could backhand
Regular verb: backhand - backhanded- backhanded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could backhand
you could backhand
she could backhand
we could backhand
you could backhand
they could backhand 	I could be backhanding
you could be backhanding
she could be backhanding
we could be backhanding
you could be backhanding
they could be backhanding	I could have backhanded
you could have backhanded
she could have backhanded
we could have backhanded
you could have backhanded
they could have backhanded	I could have been backhanding
you could have been backhanding
she could have been backhanding
we could have been backhanding
you could have been backhanding
they could have been backhanding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't backhand
you couldn't backhand
she couldn't backhand
we couldn't backhand
you couldn't backhand
they couldn't backhand 	I couldn't be backhanding
you couldn't be backhanding
she couldn't be backhanding
we couldn't be backhanding
you couldn't be backhanding
they couldn't be backhanding	I couldn't have backhanded
you couldn't have backhanded
she couldn't have backhanded
we couldn't have backhanded
you couldn't have backhanded
they couldn't have backhanded	I couldn't have been backhanding
you couldn't have been backhanding
she couldn't have been backhanding
we couldn't have been backhanding
you couldn't have been backhanding
they couldn't have been backhanding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I backhand?
could you backhand?
could she backhand?
could we backhand?
could you backhand?
could they backhand? 	could I be backhanding?
could you be backhanding?
could she be backhanding?
could we be backhanding?
could you be backhanding?
could they be backhanding? 	could I have backhanded?
could you have backhanded?
could she have backhanded?
could we have backhanded?
could you have backhanded?
could they have backhanded? 	could I have been backhanding?
could you have been backhanding?
could she have been backhanding?
could we have been backhanding?
could you have been backhanding?
could they have been backhanding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I backhand?
couldn't you backhand?
couldn't she backhand?
couldn't we backhand?
couldn't you backhand?
couldn't they backhand? 	couldn't I be backhanding?
couldn't you be backhanding?
couldn't she be backhanding?
couldn't we be backhanding?
couldn't you be backhanding?
couldn't they be backhanding? 	couldn't I have backhanded?
couldn't you have backhanded?
couldn't she have backhanded?
couldn't we have backhanded?
couldn't you have backhanded?
couldn't they have backhanded? 	couldn't I have been backhanding?
couldn't you have been backhanding?
couldn't she have been backhanding?
couldn't we have been backhanding?
couldn't you have been backhanding?
couldn't they have been backhanding?