English verb conjugation
COULD HANDCUFF

Regular verb: handcuff - handcuffed - handcuffed

Affirmation

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