*bnruwa unattested未見語料√ bruwabruwa + ⟨n⟩patient focus受事焦點preterite過去式雷過的；已把…雷what was thunderred; thunderred itroot詞根√ bruwaAF主事焦點LF處所焦點PF受事焦點IF工具焦點PRES現在式mbruwa——*sbruwaPRET過去式*bmnruwa—*bnruwa*snbruwaFUT未來式*mpbruwaDIST遠———