could sup
Regular verb: sup - supped- supped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could sup
you could sup
she could sup
we could sup
you could sup
they could sup 	I could be supping
you could be supping
she could be supping
we could be supping
you could be supping
they could be supping	I could have supped
you could have supped
she could have supped
we could have supped
you could have supped
they could have supped	I could have been supping
you could have been supping
she could have been supping
we could have been supping
you could have been supping
they could have been supping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not sup
you could not sup
she could not sup
we could not sup
you could not sup
they could not sup 	I could not be supping
you could not be supping
she could not be supping
we could not be supping
you could not be supping
they could not be supping	I could not have supped
you could not have supped
she could not have supped
we could not have supped
you could not have supped
they could not have supped	I could not have been supping
you could not have been supping
she could not have been supping
we could not have been supping
you could not have been supping
they could not have been supping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I sup?
could you sup?
could she sup?
could we sup?
could you sup?
could they sup? 	could I be supping?
could you be supping?
could she be supping?
could we be supping?
could you be supping?
could they be supping? 	could I have supped?
could you have supped?
could she have supped?
could we have supped?
could you have supped?
could they have supped? 	could I have been supping?
could you have been supping?
could she have been supping?
could we have been supping?
could you have been supping?
could they have been supping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not sup?
could you not sup?
could she not sup?
could we not sup?
could you not sup?
could they not sup? 	could I not be supping?
could you not be supping?
could she not be supping?
could we not be supping?
could you not be supping?
could they not be supping? 	could I not have supped?
could you not have supped?
could she not have supped?
could we not have supped?
could you not have supped?
could they not have supped? 	could I not have been supping?
could you not have been supping?
could she not have been supping?
could we not have been supping?
could you not have been supping?
could they not have been supping?