*mpsruwa unattested未見語料√ sruwasruwa + mp-agent focus主事焦點future未來式distant遠將要答應（遠期）will agree (sometime later)root詞根√ sruwaAF主事焦點LF處所焦點PF受事焦點IF工具焦點PRES現在式———*ssruwaPRET過去式*smnruwa—*snruwa*snsruwaFUT未來式*mpsruwaDIST遠*msruwaIMMED近———IMP命令式sruwa—srwai—