bbbee bccup be-er be-ro beber bebop becco becue beebe beour bepop beppe beppo beppu berbe bercu berec berob beroe beror berre berru beuer beure bo-bo boboc bobr bobre bobup bocce bocor boece boero boeur booce booco booer boore booru borbo borce borec boree borer boro- boroo borou borre borro borup bouce bouee bouer boure brebu brece breer breo- breoc brere breu- brobo broce broer broue brrrr bruce bruer bubbe buber bucco buceo bucur burcu buroo burro burru buruc c-cor c-p-c c-pop ccccc cebec ceber cebpb cebpe ceco- ceere ceoce ceoor ceppo cerbu cerc- cerce cerco cerec cerer cero- ceroc cerou cerre cerro co-bo co-co co-op cobbe cobre cobue cocc- cocce cocco coceo cocur coepe coeur cooee cooer coope coore copce copec coper coppe coppo copr- copre copro copur corbe corbo corbu corce core- coree corer coreu coro- corop corpe corre couco couer coupe courb coure couru crebe crece creep creer creo- creop crepe crepu creu- creue creup croce croco crooe croop cropc crope cropo crore croup cruce cruor crupe crure cubbe cubeb cuber cubo- cubub cuero cueup cuoco cuore cuper cupr- cupro curce curer curre curro curup e-pro ebber eboue ebure eccup ecorp eeeee eepee eorre eperc epure erbbe erber erere eroor erore error eubro eucre euro- europ eurre o-r-b oboro oboue obreb occur ocoee ocr-b ocree oeco- oeppo oo-er oocre ooooo opepe opere opobo opper orbec orcop oreco oreo- orere orero orobe orobo oroco oroer orube oruce oruro ouoro ource oure- p-rep pebre pecco peebo peebu peece peere pepco pepee peppe pepup perce perec perer perou perre perro peruc perur peuce peure po-po pobe pocop pooer poope poopo poore popco poper popop poppe poppo popup porco porcu poreb porec porer poro- porro porur pouce pouer poupe poure prece preco preop probe probo proer proor prop- prope propp propr prore pruce pubco puber pubo- puero puppe puppo purce puree purer puro- purre r-co- re-up rebbe rebec reber rebop recce recco recep recue recur reece reepe reere repco repec repop repor reppe repro repub rere- reree rerob reuer ro-ro robbe robbo robec rober robo- robop robor robur rocco rocor rocou roero rooer roope roore rooue roper roppe rorbu rorer rouer roure rprop rubee ruber rubor rubup rucer ruere rupee ruper rurec u-cee u-pop uber- ubobo ucero uouee upc-e upper ureo- uroob urour urubu uruce urucu urupe uuuuu