bbbbbb bbqrub beebee beiber beqiri berbee berbeo berber berere berour berrer berrie berube beruri beurre bibber bibiri bibiru bieber biobor biribi birori bobber bobbie bobbio bobiri boeber boerre boober boobie booboo booue boquio borbor borebi borier borore bororo boubou boueer bouree bourou bourre breere breuer bribe- bribee briber bribir bribri brubru bruree bubber bubbio bububu buique burbur burier burior buriro burree burrer burrie burrio bururi ebr-ii ebrie eburru eebree eerier erbree errori errour euerie eururo i-bere i-bure ibero- ibibio ier-oe ierror iiooio irereo irrour oberiu oberoi oooooo orbier orbieu orobii orrour ouerre ouioui ourebi qorqor quebro queere querie queror querre queuer quibib quibor quibou quiere quiero quique quirer quirie quirre quobbe quoque rebore rebour reiber rerobe reueir reuere reuire reuour ribber ribbie ribero ribibe ribier rieber riuere robber robbie robbio roeier rubbee rubber rubbie rubier rubrie rubro- rui-be ubique uburoi urique urouer uroure