Alkin deg tekrura tagmant d ahidṛukaṛbun ur nettwaseṛwu, Dges ma drus yiwet n turza (ttwaqqna) timisint gar n sin n ibelkimen n ukaṛbun. Dɣa tilkinin tifrarin ilan (yesɛan) yiwet n turza tusligt gellunt-d s tazrart tasnulut u tilkinin lant (sɛant) taftart takrurant tamatant CnH2n. Tilkinin tifrarin yakk d win yettusemman itilin, Maca isem-is deg tdukla tagreɣlant i tekrura tuzdigt d tusnist IUPAC d itin == Iylan ikruraren d isengamen ==