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