bbbbbb be-bop beebee beeper bepoor berbee berbeo berber berere berour berrer berube beurre bobber boeber boerre boober booboo booue bop-be bopeep bopper borbor borore bororo boubou boueer bouree bourou bourre breere breuer brorup brubru bruree bubber bububu burbur burpee burper burree burrer burrup eburru eebree epopee erbree errour europe eururo oooooo orrour ouerre peepee peeper peerer pepero pepper perere peroor perore perper perree perrou poboru poeure pooper poopoo poorer pop-up popopo poporo popper poppop pouere poupee poupou pouppe pourer pppppp pre-op preeue preore preoue prepub preue- prober probre proper propre propup propur pubber puerer purpre purpur purree purrer rebore rebour reeper repope repour repper repure repuru rerobe reuere reuour robber roeper roopee rooper roupee rouper rub-up rubbee rubber rubro- upbore uppoor upprop urouer uroure uruppu