I must degenerate you must degenerate he must degenerate we must degenerate you must degenerate they must degenerate
Forme en V-ing
I must be degenerating you must be degenerating he must be degenerating we must be degenerating you must be degenerating they must be degenerating
Perfect
I must have degenerated you must have degenerated he 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 he must have been degenerating we must have been degenerating you must have been degenerating they must have been degenerating
Négation
Forme simple
I must not degenerate you must not degenerate he must not degenerate we must not degenerate you must not degenerate they must not degenerate
Forme en V-ing
I must not be degenerating you must not be degenerating he must not be degenerating we must not be degenerating you must not be degenerating they must not be degenerating
Perfect
I must not have degenerated you must not have degenerated he must not have degenerated we must not have degenerated you must not have degenerated they must not have degenerated
Perfect en V-ing
I must not have been degenerating you must not have been degenerating he must not have been degenerating we must not have been degenerating you must not have been degenerating they must not have been degenerating
Forme interrogative
Forme simple
must I degenerate? must you degenerate? must he degenerate? must we degenerate? must you degenerate? must they degenerate?
Forme en V-ing
must I be degenerating? must you be degenerating? must he be degenerating? must we be degenerating? must you be degenerating? must they be degenerating?
Perfect
must I have degenerated? must you have degenerated? must he 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 he have been degenerating? must we have been degenerating? must you have been degenerating? must they have been degenerating?
Forme interro-négative
Forme simple
must I not degenerate? must you not degenerate? must he not degenerate? must we not degenerate? must you not degenerate? must they not degenerate?
Forme en V-ing
must I not be degenerating? must you not be degenerating? must he not be degenerating? must we not be degenerating? must you not be degenerating? must they not be degenerating?
Perfect
must I not have degenerated? must you not have degenerated? must he not have degenerated? must we not have degenerated? must you not have degenerated? must they not have degenerated?
Perfect en V-ing
must I not have been degenerating? must you not have been degenerating? must he not have been degenerating? must we not have been degenerating? must you not have been degenerating? must they not have been degenerating?