-nnahu, -hu, -kku - you (accusative pronominal suffix, 2 masc. pl.) (Bulakh–Kogan 2013b: 102)

-nnahu is the “light” form used with verbal forms of the suffix conjugation, -hu is the “light” form used with verbal forms of the prefix conjugation, -kku is the “heavy” form. The “heavy” suffixes are used with 2 fem. sg, all the plural and impersonal verbal forms, the “light” suffixes are used in all the other cases (Bulakh–Kogan 2013b: 105).