could sully
Regular verb: sully - sullied- sullied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could sully
you could sully
she could sully
we could sully
you could sully
they could sully 	I could be sullying
you could be sullying
she could be sullying
we could be sullying
you could be sullying
they could be sullying	I could have sullied
you could have sullied
she could have sullied
we could have sullied
you could have sullied
they could have sullied	I could have been sullying
you could have been sullying
she could have been sullying
we could have been sullying
you could have been sullying
they could have been sullying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't sully
you couldn't sully
she couldn't sully
we couldn't sully
you couldn't sully
they couldn't sully 	I couldn't be sullying
you couldn't be sullying
she couldn't be sullying
we couldn't be sullying
you couldn't be sullying
they couldn't be sullying	I couldn't have sullied
you couldn't have sullied
she couldn't have sullied
we couldn't have sullied
you couldn't have sullied
they couldn't have sullied	I couldn't have been sullying
you couldn't have been sullying
she couldn't have been sullying
we couldn't have been sullying
you couldn't have been sullying
they couldn't have been sullying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I sully?
could you sully?
could she sully?
could we sully?
could you sully?
could they sully? 	could I be sullying?
could you be sullying?
could she be sullying?
could we be sullying?
could you be sullying?
could they be sullying? 	could I have sullied?
could you have sullied?
could she have sullied?
could we have sullied?
could you have sullied?
could they have sullied? 	could I have been sullying?
could you have been sullying?
could she have been sullying?
could we have been sullying?
could you have been sullying?
could they have been sullying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I sully?
couldn't you sully?
couldn't she sully?
couldn't we sully?
couldn't you sully?
couldn't they sully? 	couldn't I be sullying?
couldn't you be sullying?
couldn't she be sullying?
couldn't we be sullying?
couldn't you be sullying?
couldn't they be sullying? 	couldn't I have sullied?
couldn't you have sullied?
couldn't she have sullied?
couldn't we have sullied?
couldn't you have sullied?
couldn't they have sullied? 	couldn't I have been sullying?
couldn't you have been sullying?
couldn't she have been sullying?
couldn't we have been sullying?
couldn't you have been sullying?
couldn't they have been sullying?