must handcuff
Regular verb: handcuff - handcuffed- handcuffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?