English verb conjugation
MUST POLYGRAPH

Regular verb: polygraph - polygraphed - polygraphed

Affirmation

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