must demount
Verbe régulier : demount - demounted- demounted
Traduction française : démonter 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must demount
you must demount
he must demount
we must demount
you must demount
they must demount 	I must be demounting
you must be demounting
he must be demounting
we must be demounting
you must be demounting
they must be demounting	I must have demounted
you must have demounted
he must have demounted
we must have demounted
you must have demounted
they must have demounted	I must have been demounting
you must have been demounting
he must have been demounting
we must have been demounting
you must have been demounting
they must have been demounting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't demount
you mustn't demount
he mustn't demount
we mustn't demount
you mustn't demount
they mustn't demount 	I mustn't be demounting
you mustn't be demounting
he mustn't be demounting
we mustn't be demounting
you mustn't be demounting
they mustn't be demounting	I mustn't have demounted
you mustn't have demounted
he mustn't have demounted
we mustn't have demounted
you mustn't have demounted
they mustn't have demounted	I mustn't have been demounting
you mustn't have been demounting
he mustn't have been demounting
we mustn't have been demounting
you mustn't have been demounting
they mustn't have been demounting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I demount?
must you demount?
must he demount?
must we demount?
must you demount?
must they demount? 	must I be demounting?
must you be demounting?
must he be demounting?
must we be demounting?
must you be demounting?
must they be demounting? 	must I have demounted?
must you have demounted?
must he have demounted?
must we have demounted?
must you have demounted?
must they have demounted? 	must I have been demounting?
must you have been demounting?
must he have been demounting?
must we have been demounting?
must you have been demounting?
must they have been demounting? 	

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