Ssu + ffeɣ  Ssuffeɣ a-2Attwaɣ:d ticreḍt n tisuddma n umyag temmal- d win ɣef teḍra tigawt, yettwasileɣ s tmerna n tecreḍt n "ttu" neɣ "ttwa", "mm", "nn" neɣ ""n" ɣer tazwara n ufeggag anemyag, akken id d- yenna Nait Zerrad (K) (2001 :94) : Attwaɣ yettili- d s usezwer n walɣacen (ttu), (nn), (ttwa) ɣer umyag aḥerfi.15