*mtruma unattested未見語料√ trumatruma + m-agent focus主事焦點future未來式immediate近即將裡面（近期）about to inside; will inside (soon)root詞根√ trumaAF主事焦點LF處所焦點PF受事焦點IF工具焦點PRES現在式*tmrumastrmaan—*strumaPRET過去式*tmnruma—*tnrumasntrumaⓝFUT未來式*mptrumaDIST遠*mtrumaIMMED近———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k-ktruma———