*sthei unattested未見語料√ theithei + s-instrumental focus工具焦點用來聽話的；用…聽話to obedient with; the thing used for obedientingroot詞根√ theiAF主事焦點LF處所焦點PF受事焦點IF工具焦點PRES現在式*tmhei*thiyanthiyun*stheiPRET過去式*tmnheitnhiyan*tnhei*sntheiFUT未來式*mptheiDIST遠*mtheiIMMED近*tthiyan*tthiyun—IMP命令式thei—*thiyi—