*snkduku unattested未見語料√ kdukukduku + sn-instrumental focus工具焦點preterite過去式曾用來低下頭的what was used to lower the headroot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———