I must shield you must shield he must shield we must shield you must shield they must shield
Forme en V-ing
I must be shielding you must be shielding he must be shielding we must be shielding you must be shielding they must be shielding
Perfect
I must have shielded you must have shielded he must have shielded we must have shielded you must have shielded they must have shielded
Perfect en V-ing
I must have been shielding you must have been shielding he must have been shielding we must have been shielding you must have been shielding they must have been shielding
Négation
Forme simple
I must not shield you must not shield he must not shield we must not shield you must not shield they must not shield
Forme en V-ing
I must not be shielding you must not be shielding he must not be shielding we must not be shielding you must not be shielding they must not be shielding
Perfect
I must not have shielded you must not have shielded he must not have shielded we must not have shielded you must not have shielded they must not have shielded
Perfect en V-ing
I must not have been shielding you must not have been shielding he must not have been shielding we must not have been shielding you must not have been shielding they must not have been shielding
Forme interrogative
Forme simple
must I shield? must you shield? must he shield? must we shield? must you shield? must they shield?
Forme en V-ing
must I be shielding? must you be shielding? must he be shielding? must we be shielding? must you be shielding? must they be shielding?
Perfect
must I have shielded? must you have shielded? must he have shielded? must we have shielded? must you have shielded? must they have shielded?
Perfect en V-ing
must I have been shielding? must you have been shielding? must he have been shielding? must we have been shielding? must you have been shielding? must they have been shielding?
Forme interro-négative
Forme simple
must I not shield? must you not shield? must he not shield? must we not shield? must you not shield? must they not shield?
Forme en V-ing
must I not be shielding? must you not be shielding? must he not be shielding? must we not be shielding? must you not be shielding? must they not be shielding?
Perfect
must I not have shielded? must you not have shielded? must he not have shielded? must we not have shielded? must you not have shielded? must they not have shielded?
Perfect en V-ing
must I not have been shielding? must you not have been shielding? must he not have been shielding? must we not have been shielding? must you not have been shielding? must they not have been shielding?