http://www.bertrandboutin.ca/Folder_151_Grammaire/D_a_acc_pp.htm#_PARTICIPE_PASSÉ_SANS_AUXILIAIRE_(EM_1
http://www.bertrandboutin.ca/Folder_151_Grammaire/zzToC.htm
exercices du pluriel des noms: http://www.francaisfacile.com/exercices/exercice-francais-2/exercice-francais-12595.php