must learn
Verbe irrégulier : learn - learned, learnt- learned, learnt
Traduction française : apprendre 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must learn
you must learn
he must learn
we must learn
you must learn
they must learn 	I must be learning
you must be learning
he must be learning
we must be learning
you must be learning
they must be learning	I must have learned, learnt
you must have learned, learnt
he must have learned, learnt
we must have learned, learnt
you must have learned, learnt
they must have learned, learnt	I must have been learning
you must have been learning
he must have been learning
we must have been learning
you must have been learning
they must have been learning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't learn
you mustn't learn
he mustn't learn
we mustn't learn
you mustn't learn
they mustn't learn 	I mustn't be learning
you mustn't be learning
he mustn't be learning
we mustn't be learning
you mustn't be learning
they mustn't be learning	I mustn't have learned, learnt
you mustn't have learned, learnt
he mustn't have learned, learnt
we mustn't have learned, learnt
you mustn't have learned, learnt
they mustn't have learned, learnt	I mustn't have been learning
you mustn't have been learning
he mustn't have been learning
we mustn't have been learning
you mustn't have been learning
they mustn't have been learning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I learn?
must you learn?
must he learn?
must we learn?
must you learn?
must they learn? 	must I be learning?
must you be learning?
must he be learning?
must we be learning?
must you be learning?
must they be learning? 	must I have learned, learnt?
must you have learned, learnt?
must he have learned, learnt?
must we have learned, learnt?
must you have learned, learnt?
must they have learned, learnt? 	must I have been learning?
must you have been learning?
must he have been learning?
must we have been learning?
must you have been learning?
must they have been learning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I learn?
mustn't you learn?
mustn't he learn?
mustn't we learn?
mustn't you learn?
mustn't they learn? 	mustn't I be learning?
mustn't you be learning?
mustn't he be learning?
mustn't we be learning?
mustn't you be learning?
mustn't they be learning? 	mustn't I have learned, learnt?
mustn't you have learned, learnt?
mustn't he have learned, learnt?
mustn't we have learned, learnt?
mustn't you have learned, learnt?
mustn't they have learned, learnt? 	mustn't I have been learning?
mustn't you have been learning?
mustn't he have been learning?
mustn't we have been learning?
mustn't you have been learning?
mustn't they have been learning?