I must encumber you must encumber he must encumber we must encumber you must encumber they must encumber
Forme en V-ing
I must be encumbering you must be encumbering he must be encumbering we must be encumbering you must be encumbering they must be encumbering
Perfect
I must have encumbered you must have encumbered he must have encumbered we must have encumbered you must have encumbered they must have encumbered
Perfect en V-ing
I must have been encumbering you must have been encumbering he must have been encumbering we must have been encumbering you must have been encumbering they must have been encumbering
Négation
Forme simple
I mustn't encumber you mustn't encumber he mustn't encumber we mustn't encumber you mustn't encumber they mustn't encumber
Forme en V-ing
I mustn't be encumbering you mustn't be encumbering he mustn't be encumbering we mustn't be encumbering you mustn't be encumbering they mustn't be encumbering
Perfect
I mustn't have encumbered you mustn't have encumbered he mustn't have encumbered we mustn't have encumbered you mustn't have encumbered they mustn't have encumbered
Perfect en V-ing
I mustn't have been encumbering you mustn't have been encumbering he mustn't have been encumbering we mustn't have been encumbering you mustn't have been encumbering they mustn't have been encumbering
Forme interrogative
Forme simple
must I encumber? must you encumber? must he encumber? must we encumber? must you encumber? must they encumber?
Forme en V-ing
must I be encumbering? must you be encumbering? must he be encumbering? must we be encumbering? must you be encumbering? must they be encumbering?
Perfect
must I have encumbered? must you have encumbered? must he have encumbered? must we have encumbered? must you have encumbered? must they have encumbered?
Perfect en V-ing
must I have been encumbering? must you have been encumbering? must he have been encumbering? must we have been encumbering? must you have been encumbering? must they have been encumbering?
Forme interro-négative
Forme simple
mustn't I encumber? mustn't you encumber? mustn't he encumber? mustn't we encumber? mustn't you encumber? mustn't they encumber?
Forme en V-ing
mustn't I be encumbering? mustn't you be encumbering? mustn't he be encumbering? mustn't we be encumbering? mustn't you be encumbering? mustn't they be encumbering?
Perfect
mustn't I have encumbered? mustn't you have encumbered? mustn't he have encumbered? mustn't we have encumbered? mustn't you have encumbered? mustn't they have encumbered?
Perfect en V-ing
mustn't I have been encumbering? mustn't you have been encumbering? mustn't he have been encumbering? mustn't we have been encumbering? mustn't you have been encumbering? mustn't they have been encumbering?