bbbee bcell be-er bebel beber becel becue beebe beele beeve belce belec belee bellb belle belue belur berbe bercu berec berel berle berre berru beuer beule beure beuve bevce bevel bever bevue bleer blere bleue bleve bluer blurb blure blurr brebu brece breel breer brell brere breu- breve brrrr bruce bruer brule brull bubbe buber buble bucur buell bulb- bull- bulle bulul burcu burel burle burru buruc buvce cblue ccccc ccell ccrcl ccrel cebec ceber ceele ceere celeb celer cell- celle cerbu cerc- cerce cerec cerer cerre cleer clerc clere cleve clevr clubb clue- cluer clurr cluve crebe crece creel creer crele crell creu- creue creul creve crrel cruce cruel crule crull crure cruve cubbe cubeb cubel cuber cubub culbe culle cullu culur curce curel curer curle curll curlu curre curve cuuel cuvee cvrce ebber ebble ebell eberl eblul ebull ebure eccle eeeee eeler eevee eever elele eleve ellel eller ellul elrec elulu eluru elver erbbe erber erere ereve eucre euell euler eurel eurre evell evere everr eveve lebce lebec lebel leber lecce leece leell leere leeve leleu lelle lerer leuc- leuce levec levee level lever levre lubbe luber luble lubur lucee lucre lucur lueve lulec lulle luluc lulul lurer lurue lurve luver rebbe rebec rebel reber recce recue recur reece reere reeve relee relue rere- reree reuel reuer reule revel rever revle revue rubee rubel ruber ruble rucer rucul ruele ruell ruere ruler rurec ruule u-cee ubble uber- uccel uccle ucell uclue ulcer ullur ululu uluru ulver urcel urelu urubu uruce urucu uuuuu uvele uvule veber vebre vecer veele veell veere veeve velev velle velur vereb verel verre verul verve veuve vevce vever vreel vuele vuere vulv- vulve vuver