could ration
Regular verb: ration - rationed- rationed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could ration
you could ration
she could ration
we could ration
you could ration
they could ration 	I could be rationing
you could be rationing
she could be rationing
we could be rationing
you could be rationing
they could be rationing	I could have rationed
you could have rationed
she could have rationed
we could have rationed
you could have rationed
they could have rationed	I could have been rationing
you could have been rationing
she could have been rationing
we could have been rationing
you could have been rationing
they could have been rationing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't ration
you couldn't ration
she couldn't ration
we couldn't ration
you couldn't ration
they couldn't ration 	I couldn't be rationing
you couldn't be rationing
she couldn't be rationing
we couldn't be rationing
you couldn't be rationing
they couldn't be rationing	I couldn't have rationed
you couldn't have rationed
she couldn't have rationed
we couldn't have rationed
you couldn't have rationed
they couldn't have rationed	I couldn't have been rationing
you couldn't have been rationing
she couldn't have been rationing
we couldn't have been rationing
you couldn't have been rationing
they couldn't have been rationing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I ration?
could you ration?
could she ration?
could we ration?
could you ration?
could they ration? 	could I be rationing?
could you be rationing?
could she be rationing?
could we be rationing?
could you be rationing?
could they be rationing? 	could I have rationed?
could you have rationed?
could she have rationed?
could we have rationed?
could you have rationed?
could they have rationed? 	could I have been rationing?
could you have been rationing?
could she have been rationing?
could we have been rationing?
could you have been rationing?
could they have been rationing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I ration?
couldn't you ration?
couldn't she ration?
couldn't we ration?
couldn't you ration?
couldn't they ration? 	couldn't I be rationing?
couldn't you be rationing?
couldn't she be rationing?
couldn't we be rationing?
couldn't you be rationing?
couldn't they be rationing? 	couldn't I have rationed?
couldn't you have rationed?
couldn't she have rationed?
couldn't we have rationed?
couldn't you have rationed?
couldn't they have rationed? 	couldn't I have been rationing?
couldn't you have been rationing?
couldn't she have been rationing?
couldn't we have been rationing?
couldn't you have been rationing?
couldn't they have been rationing?