English verb conjugation
MUST PRETTY

Regular verb: pretty - prettied - prettied

Affirmation

Simple form	V-ing form
I must pretty you must pretty he must pretty we must pretty you must pretty they must pretty	I must be prettying you must be prettying he must be prettying we must be prettying you must be prettying they must be prettying
Perfect	V-ing perfect
I must have prettied you must have prettied he must have prettied we must have prettied you must have prettied they must have prettied	I must have been prettying you must have been prettying he must have been prettying we must have been prettying you must have been prettying they must have been prettying

Negation

Simple form	V-ing form
I mustn't pretty you mustn't pretty he mustn't pretty we mustn't pretty you mustn't pretty they mustn't pretty	I mustn't be prettying you mustn't be prettying he mustn't be prettying we mustn't be prettying you mustn't be prettying they mustn't be prettying
Perfect	V-ing perfect
I mustn't have prettied you mustn't have prettied he mustn't have prettied we mustn't have prettied you mustn't have prettied they mustn't have prettied	I mustn't have been prettying you mustn't have been prettying he mustn't have been prettying we mustn't have been prettying you mustn't have been prettying they mustn't have been prettying

Interrogative form

Simple form	V-ing form
must I pretty? must you pretty? must he pretty? must we pretty? must you pretty? must they pretty?	must I be prettying? must you be prettying? must he be prettying? must we be prettying? must you be prettying? must they be prettying?
Perfect	V-ing perfect
must I have prettied? must you have prettied? must he have prettied? must we have prettied? must you have prettied? must they have prettied?	must I have been prettying? must you have been prettying? must he have been prettying? must we have been prettying? must you have been prettying? must they have been prettying?

Interro-negative form

Simple form	V-ing form
mustn't I pretty? mustn't you pretty? mustn't he pretty? mustn't we pretty? mustn't you pretty? mustn't they pretty?	mustn't I be prettying? mustn't you be prettying? mustn't he be prettying? mustn't we be prettying? mustn't you be prettying? mustn't they be prettying?
Perfect	V-ing perfect
mustn't I have prettied? mustn't you have prettied? mustn't he have prettied? mustn't we have prettied? mustn't you have prettied? mustn't they have prettied?	mustn't I have been prettying? mustn't you have been prettying? mustn't he have been prettying? mustn't we have been prettying? mustn't you have been prettying? mustn't they have been prettying?