Deg usiɣzef n Seleskovitch, Jean Delisle (1980) yebna-d taḍrist lqayen ugar, d tsenselmudt n teẓri n usegzi n tsuqilt, anda i ttuɣalen ɣer tesleḍt n yinawen d tesnillest taḍrisant. Asiɣzef-a, yezrew amazlay n umecwar n (conceptualisation) deg ukala n usmutti deg wayen ikecmen deg tesnillest.