*trtani unattested未見語料√ tretuntretun + -aniinstrumental focus工具焦點imperative命令式用它慫恿！；替人慫恿！egg on with it!; egg on it for someone!root詞根√ tretunAF主事焦點LF處所焦點PF受事焦點IF工具焦點PRES現在式tmretun*tretan—*stretunPRET過去式*tmnretun*tnretan*tnretun*sntretunFUT未來式*mptretunDIST遠*mtretunIMMED近*ttretan*ttretun—IMP命令式tretun—*treti*trtani