could cuff
Regular verb: cuff - cuffed- cuffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could cuff
you could cuff
he could cuff
we could cuff
you could cuff
they could cuff 	I could be cuffing
you could be cuffing
he could be cuffing
we could be cuffing
you could be cuffing
they could be cuffing	I could have cuffed
you could have cuffed
he could have cuffed
we could have cuffed
you could have cuffed
they could have cuffed	I could have been cuffing
you could have been cuffing
he could have been cuffing
we could have been cuffing
you could have been cuffing
they could have been cuffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not cuff
you could not cuff
he could not cuff
we could not cuff
you could not cuff
they could not cuff 	I could not be cuffing
you could not be cuffing
he could not be cuffing
we could not be cuffing
you could not be cuffing
they could not be cuffing	I could not have cuffed
you could not have cuffed
he could not have cuffed
we could not have cuffed
you could not have cuffed
they could not have cuffed	I could not have been cuffing
you could not have been cuffing
he could not have been cuffing
we could not have been cuffing
you could not have been cuffing
they could not have been cuffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I cuff?
could you cuff?
could he cuff?
could we cuff?
could you cuff?
could they cuff? 	could I be cuffing?
could you be cuffing?
could he be cuffing?
could we be cuffing?
could you be cuffing?
could they be cuffing? 	could I have cuffed?
could you have cuffed?
could he have cuffed?
could we have cuffed?
could you have cuffed?
could they have cuffed? 	could I have been cuffing?
could you have been cuffing?
could he have been cuffing?
could we have been cuffing?
could you have been cuffing?
could they have been cuffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not cuff?
could you not cuff?
could he not cuff?
could we not cuff?
could you not cuff?
could they not cuff? 	could I not be cuffing?
could you not be cuffing?
could he not be cuffing?
could we not be cuffing?
could you not be cuffing?
could they not be cuffing? 	could I not have cuffed?
could you not have cuffed?
could he not have cuffed?
could we not have cuffed?
could you not have cuffed?
could they not have cuffed? 	could I not have been cuffing?
could you not have been cuffing?
could he not have been cuffing?
could we not have been cuffing?
could you not have been cuffing?
could they not have been cuffing?