*ssberih unattested未見語料√ sberihsberih + s-instrumental focus工具焦點用來解開的；用…解開to undo with; the thing used for undoingroot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———