Rnan-d $ef waya inadiyen n (O. OUAKRIM, 1993, 1994, 1999), i d-yeqqaren ilaq ad d-yili wayen s wayes ara nessemgired tirgalin taddayin $ef tuééilin, maca amnadiagi yerna ibbegen-d dakken atimi d yiwen n umatar i izemren ad yessemgired ger tergalt tuééilt d tussisdt. Ula d (RIDOUAN, 2003), yewwi-d awal deg unadi-s i wumi isemma : amsevfer n tergalin di tantala tacelêit , $ef tergalt tadday, tuééilt d tussidt, yessawev di taggara n unadi-s yenna-d d akken, d targalt tuééilt i yukzen tameûkiwt tunîiqt n tantala tacelêt.