must prestress
Verbe régulier : prestress - prestressed- prestressed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must prestress
you must prestress
he must prestress
we must prestress
you must prestress
they must prestress 	I must be prestressing
you must be prestressing
he must be prestressing
we must be prestressing
you must be prestressing
they must be prestressing	I must have prestressed
you must have prestressed
he must have prestressed
we must have prestressed
you must have prestressed
they must have prestressed	I must have been prestressing
you must have been prestressing
he must have been prestressing
we must have been prestressing
you must have been prestressing
they must have been prestressing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't prestress
you mustn't prestress
he mustn't prestress
we mustn't prestress
you mustn't prestress
they mustn't prestress 	I mustn't be prestressing
you mustn't be prestressing
he mustn't be prestressing
we mustn't be prestressing
you mustn't be prestressing
they mustn't be prestressing	I mustn't have prestressed
you mustn't have prestressed
he mustn't have prestressed
we mustn't have prestressed
you mustn't have prestressed
they mustn't have prestressed	I mustn't have been prestressing
you mustn't have been prestressing
he mustn't have been prestressing
we mustn't have been prestressing
you mustn't have been prestressing
they mustn't have been prestressing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I prestress?
must you prestress?
must he prestress?
must we prestress?
must you prestress?
must they prestress? 	must I be prestressing?
must you be prestressing?
must he be prestressing?
must we be prestressing?
must you be prestressing?
must they be prestressing? 	must I have prestressed?
must you have prestressed?
must he have prestressed?
must we have prestressed?
must you have prestressed?
must they have prestressed? 	must I have been prestressing?
must you have been prestressing?
must he have been prestressing?
must we have been prestressing?
must you have been prestressing?
must they have been prestressing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I prestress?
mustn't you prestress?
mustn't he prestress?
mustn't we prestress?
mustn't you prestress?
mustn't they prestress? 	mustn't I be prestressing?
mustn't you be prestressing?
mustn't he be prestressing?
mustn't we be prestressing?
mustn't you be prestressing?
mustn't they be prestressing? 	mustn't I have prestressed?
mustn't you have prestressed?
mustn't he have prestressed?
mustn't we have prestressed?
mustn't you have prestressed?
mustn't they have prestressed? 	mustn't I have been prestressing?
mustn't you have been prestressing?
mustn't he have been prestressing?
mustn't we have been prestressing?
mustn't you have been prestressing?
mustn't they have been prestressing?