bbbbbb beebee beefer beerne befree benben benfer benner bennur benreu berbee berber berene berere berner berrer berube beuren beurre breefe breere brener brenne breuer brubru bruern bruner brunne bruree bubber bububu buerne buffen buffer burbur burfee burn-e burner burree burren burrer eburru eebree effere enbene enfree erbree ernee fenner ferber ferfer ferner ferren ferrer ferrur frefre frenne freren freure funner funrun furber furfen furfur furner furrer furrfu nebber nebeur neener nefere nennur nerrer neuere neueue neuner nubber nuberu nuenen re-run rebuff reburn reefer reeffe refeff refurb renner renren reuben reuere rubbee rubber rueben ruffer runner unbeen unbene unburn unfere unfree unrufe uruffe