I must degenerate you must degenerate she must degenerate we must degenerate you must degenerate they must degenerate
Forme en V-ing
I must be degenerating you must be degenerating she must be degenerating we must be degenerating you must be degenerating they must be degenerating
Perfect
I must have degenerated you must have degenerated she must have degenerated we must have degenerated you must have degenerated they must have degenerated
Perfect en V-ing
I must have been degenerating you must have been degenerating she must have been degenerating we must have been degenerating you must have been degenerating they must have been degenerating
Négation
Forme simple
I mustn't degenerate you mustn't degenerate she mustn't degenerate we mustn't degenerate you mustn't degenerate they mustn't degenerate
Forme en V-ing
I mustn't be degenerating you mustn't be degenerating she mustn't be degenerating we mustn't be degenerating you mustn't be degenerating they mustn't be degenerating
Perfect
I mustn't have degenerated you mustn't have degenerated she mustn't have degenerated we mustn't have degenerated you mustn't have degenerated they mustn't have degenerated
Perfect en V-ing
I mustn't have been degenerating you mustn't have been degenerating she mustn't have been degenerating we mustn't have been degenerating you mustn't have been degenerating they mustn't have been degenerating
Forme interrogative
Forme simple
must I degenerate? must you degenerate? must she degenerate? must we degenerate? must you degenerate? must they degenerate?
Forme en V-ing
must I be degenerating? must you be degenerating? must she be degenerating? must we be degenerating? must you be degenerating? must they be degenerating?
Perfect
must I have degenerated? must you have degenerated? must she have degenerated? must we have degenerated? must you have degenerated? must they have degenerated?
Perfect en V-ing
must I have been degenerating? must you have been degenerating? must she have been degenerating? must we have been degenerating? must you have been degenerating? must they have been degenerating?
Forme interro-négative
Forme simple
mustn't I degenerate? mustn't you degenerate? mustn't she degenerate? mustn't we degenerate? mustn't you degenerate? mustn't they degenerate?
Forme en V-ing
mustn't I be degenerating? mustn't you be degenerating? mustn't she be degenerating? mustn't we be degenerating? mustn't you be degenerating? mustn't they be degenerating?
Perfect
mustn't I have degenerated? mustn't you have degenerated? mustn't she have degenerated? mustn't we have degenerated? mustn't you have degenerated? mustn't they have degenerated?
Perfect en V-ing
mustn't I have been degenerating? mustn't you have been degenerating? mustn't she have been degenerating? mustn't we have been degenerating? mustn't you have been degenerating? mustn't they have been degenerating?