could sop
Regular verb: sop - sopped- sopped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could sop
you could sop
she could sop
we could sop
you could sop
they could sop 	I could be sopping
you could be sopping
she could be sopping
we could be sopping
you could be sopping
they could be sopping	I could have sopped
you could have sopped
she could have sopped
we could have sopped
you could have sopped
they could have sopped	I could have been sopping
you could have been sopping
she could have been sopping
we could have been sopping
you could have been sopping
they could have been sopping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't sop
you couldn't sop
she couldn't sop
we couldn't sop
you couldn't sop
they couldn't sop 	I couldn't be sopping
you couldn't be sopping
she couldn't be sopping
we couldn't be sopping
you couldn't be sopping
they couldn't be sopping	I couldn't have sopped
you couldn't have sopped
she couldn't have sopped
we couldn't have sopped
you couldn't have sopped
they couldn't have sopped	I couldn't have been sopping
you couldn't have been sopping
she couldn't have been sopping
we couldn't have been sopping
you couldn't have been sopping
they couldn't have been sopping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I sop?
could you sop?
could she sop?
could we sop?
could you sop?
could they sop? 	could I be sopping?
could you be sopping?
could she be sopping?
could we be sopping?
could you be sopping?
could they be sopping? 	could I have sopped?
could you have sopped?
could she have sopped?
could we have sopped?
could you have sopped?
could they have sopped? 	could I have been sopping?
could you have been sopping?
could she have been sopping?
could we have been sopping?
could you have been sopping?
could they have been sopping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I sop?
couldn't you sop?
couldn't she sop?
couldn't we sop?
couldn't you sop?
couldn't they sop? 	couldn't I be sopping?
couldn't you be sopping?
couldn't she be sopping?
couldn't we be sopping?
couldn't you be sopping?
couldn't they be sopping? 	couldn't I have sopped?
couldn't you have sopped?
couldn't she have sopped?
couldn't we have sopped?
couldn't you have sopped?
couldn't they have sopped? 	couldn't I have been sopping?
couldn't you have been sopping?
couldn't she have been sopping?
couldn't we have been sopping?
couldn't you have been sopping?
couldn't they have been sopping?