English verb conjugation
MUST RIGIDIFY

Regular verb: rigidify - rigidified - rigidified

Affirmation

Simple form	V-ing form
I must rigidify you must rigidify he must rigidify we must rigidify you must rigidify they must rigidify	I must be rigidifying you must be rigidifying he must be rigidifying we must be rigidifying you must be rigidifying they must be rigidifying
Perfect	V-ing perfect
I must have rigidified you must have rigidified he must have rigidified we must have rigidified you must have rigidified they must have rigidified	I must have been rigidifying you must have been rigidifying he must have been rigidifying we must have been rigidifying you must have been rigidifying they must have been rigidifying

Negation

Simple form	V-ing form
I mustn't rigidify you mustn't rigidify he mustn't rigidify we mustn't rigidify you mustn't rigidify they mustn't rigidify	I mustn't be rigidifying you mustn't be rigidifying he mustn't be rigidifying we mustn't be rigidifying you mustn't be rigidifying they mustn't be rigidifying
Perfect	V-ing perfect
I mustn't have rigidified you mustn't have rigidified he mustn't have rigidified we mustn't have rigidified you mustn't have rigidified they mustn't have rigidified	I mustn't have been rigidifying you mustn't have been rigidifying he mustn't have been rigidifying we mustn't have been rigidifying you mustn't have been rigidifying they mustn't have been rigidifying

Interrogative form

Simple form	V-ing form
must I rigidify? must you rigidify? must he rigidify? must we rigidify? must you rigidify? must they rigidify?	must I be rigidifying? must you be rigidifying? must he be rigidifying? must we be rigidifying? must you be rigidifying? must they be rigidifying?
Perfect	V-ing perfect
must I have rigidified? must you have rigidified? must he have rigidified? must we have rigidified? must you have rigidified? must they have rigidified?	must I have been rigidifying? must you have been rigidifying? must he have been rigidifying? must we have been rigidifying? must you have been rigidifying? must they have been rigidifying?

Interro-negative form

Simple form	V-ing form
mustn't I rigidify? mustn't you rigidify? mustn't he rigidify? mustn't we rigidify? mustn't you rigidify? mustn't they rigidify?	mustn't I be rigidifying? mustn't you be rigidifying? mustn't he be rigidifying? mustn't we be rigidifying? mustn't you be rigidifying? mustn't they be rigidifying?
Perfect	V-ing perfect
mustn't I have rigidified? mustn't you have rigidified? mustn't he have rigidified? mustn't we have rigidified? mustn't you have rigidified? mustn't they have rigidified?	mustn't I have been rigidifying? mustn't you have been rigidifying? mustn't he have been rigidifying? mustn't we have been rigidifying? mustn't you have been rigidifying? mustn't they have been rigidifying?