could up
Regular verb: up - upped- upped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could up
you could up
she could up
we could up
you could up
they could up 	I could be upping
you could be upping
she could be upping
we could be upping
you could be upping
they could be upping	I could have upped
you could have upped
she could have upped
we could have upped
you could have upped
they could have upped	I could have been upping
you could have been upping
she could have been upping
we could have been upping
you could have been upping
they could have been upping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not up
you could not up
she could not up
we could not up
you could not up
they could not up 	I could not be upping
you could not be upping
she could not be upping
we could not be upping
you could not be upping
they could not be upping	I could not have upped
you could not have upped
she could not have upped
we could not have upped
you could not have upped
they could not have upped	I could not have been upping
you could not have been upping
she could not have been upping
we could not have been upping
you could not have been upping
they could not have been upping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I up?
could you up?
could she up?
could we up?
could you up?
could they up? 	could I be upping?
could you be upping?
could she be upping?
could we be upping?
could you be upping?
could they be upping? 	could I have upped?
could you have upped?
could she have upped?
could we have upped?
could you have upped?
could they have upped? 	could I have been upping?
could you have been upping?
could she have been upping?
could we have been upping?
could you have been upping?
could they have been upping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not up?
could you not up?
could she not up?
could we not up?
could you not up?
could they not up? 	could I not be upping?
could you not be upping?
could she not be upping?
could we not be upping?
could you not be upping?
could they not be upping? 	could I not have upped?
could you not have upped?
could she not have upped?
could we not have upped?
could you not have upped?
could they not have upped? 	could I not have been upping?
could you not have been upping?
could she not have been upping?
could we not have been upping?
could you not have been upping?
could they not have been upping?