As there is no evidence for the "prefix conjugation" in Omotic, Chadic, or Egyptian, it is unclear whether this was a Proto-Afroasiatic feature that has been lost in those branches or is a shared innovation among Semitic, Berber, and Cushitic.
æz ðɛɹ ɪz nˈoʊ ˈɛvɪdəns fɚðə "pɹˈiːfɪks kˌɑːndʒuːɡˈeɪʃən" ɪn ɑːmˈɑːɾɪk, tʃˈædɪk, ɔːɹ ɪdʒˈɪpʃən, ɪɾ ɪz ʌŋklˈɪɹ wˈɛðɚ ðɪs wʌzɐ pɹˈoʊɾoʊˌæfɹoʊˌeɪsɪˈæɾɪk fˈiːtʃɚ ðɐthɐzbˌɪn lˈɔst ɪn ðoʊz bɹˈæntʃᵻz ɔːɹ ɪz ɐ ʃˈɛɹd ˌɪnəvˈeɪʃən ɐmˌʌŋ sɛmˈɪɾɪk, bˈɜːbɚ, ænd kʊʃˈɪɾɪk.