could bin
Regular verb: bin - bined- bined

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could bin
you could bin
she could bin
we could bin
you could bin
they could bin 	I could be bining
you could be bining
she could be bining
we could be bining
you could be bining
they could be bining	I could have bined
you could have bined
she could have bined
we could have bined
you could have bined
they could have bined	I could have been bining
you could have been bining
she could have been bining
we could have been bining
you could have been bining
they could have been bining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't bin
you couldn't bin
she couldn't bin
we couldn't bin
you couldn't bin
they couldn't bin 	I couldn't be bining
you couldn't be bining
she couldn't be bining
we couldn't be bining
you couldn't be bining
they couldn't be bining	I couldn't have bined
you couldn't have bined
she couldn't have bined
we couldn't have bined
you couldn't have bined
they couldn't have bined	I couldn't have been bining
you couldn't have been bining
she couldn't have been bining
we couldn't have been bining
you couldn't have been bining
they couldn't have been bining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I bin?
could you bin?
could she bin?
could we bin?
could you bin?
could they bin? 	could I be bining?
could you be bining?
could she be bining?
could we be bining?
could you be bining?
could they be bining? 	could I have bined?
could you have bined?
could she have bined?
could we have bined?
could you have bined?
could they have bined? 	could I have been bining?
could you have been bining?
could she have been bining?
could we have been bining?
could you have been bining?
could they have been bining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I bin?
couldn't you bin?
couldn't she bin?
couldn't we bin?
couldn't you bin?
couldn't they bin? 	couldn't I be bining?
couldn't you be bining?
couldn't she be bining?
couldn't we be bining?
couldn't you be bining?
couldn't they be bining? 	couldn't I have bined?
couldn't you have bined?
couldn't she have bined?
couldn't we have bined?
couldn't you have bined?
couldn't they have bined? 	couldn't I have been bining?
couldn't you have been bining?
couldn't she have been bining?
couldn't we have been bining?
couldn't you have been bining?
couldn't they have been bining?