*mpsberih unattested未見語料√ sberihsberih + mp-agent focus主事焦點future未來式distant遠將要解開（遠期）will undo (sometime later)root詞根√ sberihAF主事焦點LF處所焦點PF受事焦點IF工具焦點PRES現在式smberihmsberih——*ssberihPRET過去式*smnberih—*snberih*snsberihFUT未來式*mpsberihDIST遠———