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