*mpnbuyas unattested未見語料√ nbuyasnbuyas + mp-agent focus主事焦點future未來式distant遠將要肚子（遠期）will belly (sometime later)root詞根√ nbuyasAF主事焦點LF處所焦點PF受事焦點IF工具焦點PRES現在式*nmbuyas——snbuyasPRET過去式*nmnbuyas—*nnbuyas*snnbuyasFUT未來式*mpnbuyasDIST遠*mnbuyasIMMED近———