English verb conjugation
MUST POLYGRAPH

Regular verb: polygraph - polygraphed - polygraphed

Affirmation

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