b-room bbbbbb beebee beebem beembe beemer beerme berbee berbeo berber berere bermeo berour berrer berube beumer beurre bobber boeber boerre bomber bombom bombur bommer bomure boober booboo boom-o boomer booue borbor boromo borore bororo boubou boueer bouree bourem bourou bourre breere brembo bremer breuer bromme bromo- broome broume brubru bruree bubber bububu bumbee bumboo bummer burbur bureom burree burrer eburru eburum eebree embree embrue emeere emmure emubob erbree eremo- errour eururo mbembe mbombe mbombo mbomou member membre mememe memere memome memore memour memrom mermer merour merrem merror merure mobber moembe mommer mommur moomoo moorer mormor mormur morobe mourou muermo mummer murero murmur murree murroe muumuu ombro- omemee oooooo ormore oromeo oromoo orrour ouerre oumber ourem rebomb rebore rebour remeue remoor remore rerobe reuere reuour robber robomb roemer roemoe romeoo romero romour roomer roumme rubbee rubber rubro- rubrum rumber rumbur rummer rumore rumour ubombo urouer uroure