*sndrumuc unattested未見語料√ drumucdrumuc + sn-instrumental focus工具焦點preterite過去式曾用來勤勞的what was used to hardworkingroot詞根√ drumucAF主事焦點LF處所焦點PF受事焦點IF工具焦點PRES現在式mdrumuc——*sdrumucPRET過去式*dmnrumuc—*dnrumuc*sndrumucFUT未來式*mpdrumucDIST遠———derived stems衍生詞幹AF主事焦點LF處所焦點PF受事焦點IF工具焦點CAUS使動psdrumuc———