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

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

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

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

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