*mpswai unattested未見語料√ swaiswai + mp-agent focus主事焦點future未來式distant遠將要弟弟（遠期）will younger sibling (sometime later)root詞根√ swaiAF主事焦點LF處所焦點PF受事焦點IF工具焦點PRES現在式*smwai——*sswaiPRET過去式*smnwai—*snwai*snswaiFUT未來式*mpswaiDIST遠*mswaiIMMED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REC相互mtswai———