*knduku unattested未見語料√ kdukukduku + ⟨n⟩patient focus受事焦點preterite過去式低下頭過的；已把…低下頭what was lowerred the head; lowerred the head itroot詞根√ kdukuAF主事焦點LF處所焦點PF受事焦點IF工具焦點PRES現在式mduku——*skdukuPRET過去式*kmnduku—*knduku*snkdukuFUT未來式*mpkdukuDIST遠*mkdukuIMMED近———IMP命令式kduku———