could handcuff
Regular verb: handcuff - handcuffed- handcuffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could handcuff
you could handcuff
he could handcuff
we could handcuff
you could handcuff
they could handcuff 	I could be handcuffing
you could be handcuffing
he could be handcuffing
we could be handcuffing
you could be handcuffing
they could be handcuffing	I could have handcuffed
you could have handcuffed
he could have handcuffed
we could have handcuffed
you could have handcuffed
they could have handcuffed	I could have been handcuffing
you could have been handcuffing
he could have been handcuffing
we could have been handcuffing
you could have been handcuffing
they could have been handcuffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't handcuff
you couldn't handcuff
he couldn't handcuff
we couldn't handcuff
you couldn't handcuff
they couldn't handcuff 	I couldn't be handcuffing
you couldn't be handcuffing
he couldn't be handcuffing
we couldn't be handcuffing
you couldn't be handcuffing
they couldn't be handcuffing	I couldn't have handcuffed
you couldn't have handcuffed
he couldn't have handcuffed
we couldn't have handcuffed
you couldn't have handcuffed
they couldn't have handcuffed	I couldn't have been handcuffing
you couldn't have been handcuffing
he couldn't have been handcuffing
we couldn't have been handcuffing
you couldn't have been handcuffing
they couldn't have been handcuffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I handcuff?
could you handcuff?
could he handcuff?
could we handcuff?
could you handcuff?
could they handcuff? 	could I be handcuffing?
could you be handcuffing?
could he be handcuffing?
could we be handcuffing?
could you be handcuffing?
could they be handcuffing? 	could I have handcuffed?
could you have handcuffed?
could he have handcuffed?
could we have handcuffed?
could you have handcuffed?
could they have handcuffed? 	could I have been handcuffing?
could you have been handcuffing?
could he have been handcuffing?
could we have been handcuffing?
could you have been handcuffing?
could they have been handcuffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I handcuff?
couldn't you handcuff?
couldn't he handcuff?
couldn't we handcuff?
couldn't you handcuff?
couldn't they handcuff? 	couldn't I be handcuffing?
couldn't you be handcuffing?
couldn't he be handcuffing?
couldn't we be handcuffing?
couldn't you be handcuffing?
couldn't they be handcuffing? 	couldn't I have handcuffed?
couldn't you have handcuffed?
couldn't he have handcuffed?
couldn't we have handcuffed?
couldn't you have handcuffed?
couldn't they have handcuffed? 	couldn't I have been handcuffing?
couldn't you have been handcuffing?
couldn't he have been handcuffing?
couldn't we have been handcuffing?
couldn't you have been handcuffing?
couldn't they have been handcuffing?