could cup
Regular verb: cup - cupped- cupped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could cup
you could cup
she could cup
we could cup
you could cup
they could cup 	I could be cupping
you could be cupping
she could be cupping
we could be cupping
you could be cupping
they could be cupping	I could have cupped
you could have cupped
she could have cupped
we could have cupped
you could have cupped
they could have cupped	I could have been cupping
you could have been cupping
she could have been cupping
we could have been cupping
you could have been cupping
they could have been cupping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't cup
you couldn't cup
she couldn't cup
we couldn't cup
you couldn't cup
they couldn't cup 	I couldn't be cupping
you couldn't be cupping
she couldn't be cupping
we couldn't be cupping
you couldn't be cupping
they couldn't be cupping	I couldn't have cupped
you couldn't have cupped
she couldn't have cupped
we couldn't have cupped
you couldn't have cupped
they couldn't have cupped	I couldn't have been cupping
you couldn't have been cupping
she couldn't have been cupping
we couldn't have been cupping
you couldn't have been cupping
they couldn't have been cupping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I cup?
could you cup?
could she cup?
could we cup?
could you cup?
could they cup? 	could I be cupping?
could you be cupping?
could she be cupping?
could we be cupping?
could you be cupping?
could they be cupping? 	could I have cupped?
could you have cupped?
could she have cupped?
could we have cupped?
could you have cupped?
could they have cupped? 	could I have been cupping?
could you have been cupping?
could she have been cupping?
could we have been cupping?
could you have been cupping?
could they have been cupping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I cup?
couldn't you cup?
couldn't she cup?
couldn't we cup?
couldn't you cup?
couldn't they cup? 	couldn't I be cupping?
couldn't you be cupping?
couldn't she be cupping?
couldn't we be cupping?
couldn't you be cupping?
couldn't they be cupping? 	couldn't I have cupped?
couldn't you have cupped?
couldn't she have cupped?
couldn't we have cupped?
couldn't you have cupped?
couldn't they have cupped? 	couldn't I have been cupping?
couldn't you have been cupping?
couldn't she have been cupping?
couldn't we have been cupping?
couldn't you have been cupping?
couldn't they have been cupping?