must major
Verbe régulier : major - majored- majored
Traduction française : (US) se spécialiser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must major
you must major
he must major
we must major
you must major
they must major 	I must be majoring
you must be majoring
he must be majoring
we must be majoring
you must be majoring
they must be majoring	I must have majored
you must have majored
he must have majored
we must have majored
you must have majored
they must have majored	I must have been majoring
you must have been majoring
he must have been majoring
we must have been majoring
you must have been majoring
they must have been majoring	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't major
you mustn't major
he mustn't major
we mustn't major
you mustn't major
they mustn't major 	I mustn't be majoring
you mustn't be majoring
he mustn't be majoring
we mustn't be majoring
you mustn't be majoring
they mustn't be majoring	I mustn't have majored
you mustn't have majored
he mustn't have majored
we mustn't have majored
you mustn't have majored
they mustn't have majored	I mustn't have been majoring
you mustn't have been majoring
he mustn't have been majoring
we mustn't have been majoring
you mustn't have been majoring
they mustn't have been majoring	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I major?
must you major?
must he major?
must we major?
must you major?
must they major? 	must I be majoring?
must you be majoring?
must he be majoring?
must we be majoring?
must you be majoring?
must they be majoring? 	must I have majored?
must you have majored?
must he have majored?
must we have majored?
must you have majored?
must they have majored? 	must I have been majoring?
must you have been majoring?
must he have been majoring?
must we have been majoring?
must you have been majoring?
must they have been majoring? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I major?
mustn't you major?
mustn't he major?
mustn't we major?
mustn't you major?
mustn't they major? 	mustn't I be majoring?
mustn't you be majoring?
mustn't he be majoring?
mustn't we be majoring?
mustn't you be majoring?
mustn't they be majoring? 	mustn't I have majored?
mustn't you have majored?
mustn't he have majored?
mustn't we have majored?
mustn't you have majored?
mustn't they have majored? 	mustn't I have been majoring?
mustn't you have been majoring?
mustn't he have been majoring?
mustn't we have been majoring?
mustn't you have been majoring?
mustn't they have been majoring?