English verb conjugation
MUST HANDCUFF

Regular verb: handcuff - handcuffed - handcuffed

Affirmation

Simple form	V-ing form
I must handcuff you must handcuff she must handcuff we must handcuff you must handcuff they must handcuff	I must be handcuffing you must be handcuffing she must be handcuffing we must be handcuffing you must be handcuffing they must be handcuffing
Perfect	V-ing perfect
I must have handcuffed you must have handcuffed she must have handcuffed we must have handcuffed you must have handcuffed they must have handcuffed	I must have been handcuffing you must have been handcuffing she must have been handcuffing we must have been handcuffing you must have been handcuffing they must have been handcuffing

Negation

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

Interrogative form

Simple form	V-ing form
must I handcuff? must you handcuff? must she handcuff? must we handcuff? must you handcuff? must they handcuff?	must I be handcuffing? must you be handcuffing? must she be handcuffing? must we be handcuffing? must you be handcuffing? must they be handcuffing?
Perfect	V-ing perfect
must I have handcuffed? must you have handcuffed? must she have handcuffed? must we have handcuffed? must you have handcuffed? must they have handcuffed?	must I have been handcuffing? must you have been handcuffing? must she have been handcuffing? must we have been handcuffing? must you have been handcuffing? must they have been handcuffing?

Interro-negative form

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