English verb conjugation
COULD HANDCUFF

Regular verb: handcuff - handcuffed - handcuffed

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
I could not handcuff you could not handcuff he could not handcuff we could not handcuff you could not handcuff they could not handcuff	I could not be handcuffing you could not be handcuffing he could not be handcuffing we could not be handcuffing you could not be handcuffing they could not be handcuffing
Perfect	V-ing perfect
I could not have handcuffed you could not have handcuffed he could not have handcuffed we could not have handcuffed you could not have handcuffed they could not have handcuffed	I could not have been handcuffing you could not have been handcuffing he could not have been handcuffing we could not have been handcuffing you could not have been handcuffing they could not have been handcuffing

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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
could I not handcuff? could you not handcuff? could he not handcuff? could we not handcuff? could you not handcuff? could they not handcuff?	could I not be handcuffing? could you not be handcuffing? could he not be handcuffing? could we not be handcuffing? could you not be handcuffing? could they not be handcuffing?
Perfect	V-ing perfect
could I not have handcuffed? could you not have handcuffed? could he not have handcuffed? could we not have handcuffed? could you not have handcuffed? could they not have handcuffed?	could I not have been handcuffing? could you not have been handcuffing? could he not have been handcuffing? could we not have been handcuffing? could you not have been handcuffing? could they not have been handcuffing?