must pretty
Verbe régulier : pretty - prettied- prettied

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must pretty
you must pretty
she must pretty
we must pretty
you must pretty
they must pretty 	I must be prettying
you must be prettying
she must be prettying
we must be prettying
you must be prettying
they must be prettying	I must have prettied
you must have prettied
she 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
she must have been prettying
we must have been prettying
you must have been prettying
they must have been prettying	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't pretty
you mustn't pretty
she 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
she mustn't be prettying
we mustn't be prettying
you mustn't be prettying
they mustn't be prettying	I mustn't have prettied
you mustn't have prettied
she 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
she mustn't have been prettying
we mustn't have been prettying
you mustn't have been prettying
they mustn't have been prettying	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I pretty?
must you pretty?
must she pretty?
must we pretty?
must you pretty?
must they pretty? 	must I be prettying?
must you be prettying?
must she be prettying?
must we be prettying?
must you be prettying?
must they be prettying? 	must I have prettied?
must you have prettied?
must she 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 she have been prettying?
must we have been prettying?
must you have been prettying?
must they have been prettying? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I pretty?
mustn't you pretty?
mustn't she 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 she be prettying?
mustn't we be prettying?
mustn't you be prettying?
mustn't they be prettying? 	mustn't I have prettied?
mustn't you have prettied?
mustn't she 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 she have been prettying?
mustn't we have been prettying?
mustn't you have been prettying?
mustn't they have been prettying?