must let
Verbe irrégulier : let - let- let
Traduction française : permettre - louer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must let
you must let
he must let
we must let
you must let
they must let 	I must be letting
you must be letting
he must be letting
we must be letting
you must be letting
they must be letting	I must have let
you must have let
he must have let
we must have let
you must have let
they must have let	I must have been letting
you must have been letting
he must have been letting
we must have been letting
you must have been letting
they must have been letting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't let
you mustn't let
he mustn't let
we mustn't let
you mustn't let
they mustn't let 	I mustn't be letting
you mustn't be letting
he mustn't be letting
we mustn't be letting
you mustn't be letting
they mustn't be letting	I mustn't have let
you mustn't have let
he mustn't have let
we mustn't have let
you mustn't have let
they mustn't have let	I mustn't have been letting
you mustn't have been letting
he mustn't have been letting
we mustn't have been letting
you mustn't have been letting
they mustn't have been letting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I let?
must you let?
must he let?
must we let?
must you let?
must they let? 	must I be letting?
must you be letting?
must he be letting?
must we be letting?
must you be letting?
must they be letting? 	must I have let?
must you have let?
must he have let?
must we have let?
must you have let?
must they have let? 	must I have been letting?
must you have been letting?
must he have been letting?
must we have been letting?
must you have been letting?
must they have been letting? 	

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