must polygraph
Regular verb: polygraph - polygraphed- polygraphed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must polygraph
you must polygraph
she must polygraph
we must polygraph
you must polygraph
they must polygraph 	I must be polygraphing
you must be polygraphing
she must be polygraphing
we must be polygraphing
you must be polygraphing
they must be polygraphing	I must have polygraphed
you must have polygraphed
she must have polygraphed
we must have polygraphed
you must have polygraphed
they must have polygraphed	I must have been polygraphing
you must have been polygraphing
she must have been polygraphing
we must have been polygraphing
you must have been polygraphing
they must have been polygraphing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't polygraph
you mustn't polygraph
she mustn't polygraph
we mustn't polygraph
you mustn't polygraph
they mustn't polygraph 	I mustn't be polygraphing
you mustn't be polygraphing
she mustn't be polygraphing
we mustn't be polygraphing
you mustn't be polygraphing
they mustn't be polygraphing	I mustn't have polygraphed
you mustn't have polygraphed
she mustn't have polygraphed
we mustn't have polygraphed
you mustn't have polygraphed
they mustn't have polygraphed	I mustn't have been polygraphing
you mustn't have been polygraphing
she mustn't have been polygraphing
we mustn't have been polygraphing
you mustn't have been polygraphing
they mustn't have been polygraphing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I polygraph?
must you polygraph?
must she polygraph?
must we polygraph?
must you polygraph?
must they polygraph? 	must I be polygraphing?
must you be polygraphing?
must she be polygraphing?
must we be polygraphing?
must you be polygraphing?
must they be polygraphing? 	must I have polygraphed?
must you have polygraphed?
must she have polygraphed?
must we have polygraphed?
must you have polygraphed?
must they have polygraphed? 	must I have been polygraphing?
must you have been polygraphing?
must she have been polygraphing?
must we have been polygraphing?
must you have been polygraphing?
must they have been polygraphing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I polygraph?
mustn't you polygraph?
mustn't she polygraph?
mustn't we polygraph?
mustn't you polygraph?
mustn't they polygraph? 	mustn't I be polygraphing?
mustn't you be polygraphing?
mustn't she be polygraphing?
mustn't we be polygraphing?
mustn't you be polygraphing?
mustn't they be polygraphing? 	mustn't I have polygraphed?
mustn't you have polygraphed?
mustn't she have polygraphed?
mustn't we have polygraphed?
mustn't you have polygraphed?
mustn't they have polygraphed? 	mustn't I have been polygraphing?
mustn't you have been polygraphing?
mustn't she have been polygraphing?
mustn't we have been polygraphing?
mustn't you have been polygraphing?
mustn't they have been polygraphing?