*snwai unattested未見語料√ swaiswai + ⟨n⟩patient focus受事焦點preterite過去式弟弟過的；已把…弟弟what was youngerred sibling; youngerred sibling itroot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———