bbbee be-er be-ro beber becco becue becum beebe bembe bembo bemco bemer beour berbe bercu berec berme bermo berob beroe berom beror berre berru berum beuer beure bo-bo boboc bobr bobre bocce bocom bocor boece boeme boero boeur bombe bombo bomer bomme booce booco booer boomb boore booru borbo borce borec boree borer bormo boro- borom boroo borou borre borro borum bouce bouee bouer boure brebu brece breem breer breme bremm bremo breo- breoc brere breu- brmmm brobo broce broer brom- brome bromo broom broue brrrr bruce bruer brume brumm bubbe buber bucco buceo bucum bucur bumbo bumbu bumme burcu buroo burro burru buruc c-cor ccccc cebec ceber ceco- cecum ceere cemec cemmo cemre ceoce ceoor cerbu cerc- cerce cerco cerec cerer cero- ceroc cerou cerre cerro cmere co-bo co-co cobbe cobre cobue cocc- cocce cocco coceo cocom cocum cocur coeur combe combo comco comec comer comme commo commr comu- cooee cooer coomb coome coore corbe corbo corbu corce core- coree corer coreu corm- corme cormo coro- corre corum couco couer coumb coume courb coure couru crebe crece creem creer creme cremo creo- creu- creue croce croco cromb crome cromo crooe croom crore croum cruce crumb crume cruor crure cubbe cubeb cuber cubo- cubub cuero cumbe cumbo cumbu cumec cumm- cumo- cuoco cuomo cuore curce curer curre curro e-com ebber eboue ebure ecume eecom eeeee eembc embee ember embro embue emcee emcor emeco emeer emere emmer emobc emore emure eomer eorre erbbe erber erem- eremo erere erome eroom eroor erore error eubro eucre eum-u euro- eurre mbebe mbere mboro mbube mburu mcbee mccoo mccue mcree mcube mebbe meco- mecom mecum meebo meece meeco meemu meere membe memer memor merce merer mero- meroe merom meroo meror merre merur meuer meure meuro mmccc mmmcc mmmmm mobee mobme mobor mobro mocco mocoe mocre moeer moeme moere moero mombo mombu momme momoe mooer moore mooro morbo morce moree morem morer mormo moroc moror morou morre morro morue morum moure mrcub mreru mrmom mrorr muco- mucor mucro mucum mucur mumbe mumbo mumcu mumme mummu mureu murom muror murre murro murru murum o-r-b oboro oboue obreb obrom occur ocoee ocome ocr-b ocree oeco- oerme oerum ombe- omber ombre omemo omero omore omoro oo-er oocre ooooo orbec orbom oreco oreo- orere orero ormer ormoc ormur orobe orobo oroco oroer orome oromo orrum orube oruce oruro oueme oumer ouoro ource oure- r-co- rebbe rebec reber recce recco recue recur reece reeme reemo reere remco remee remer remor remou remue reome rere- reree rerob rerum reuer reume ro-ro robbe robbo robec rober robo- robor robur rocco rocor rocou roero rombe romeo romer romme rooer roome roomu roore rooue rorbu rorem rorer rouer roume roumm roure rubee ruber rubor rucer ruere rumbe rumbo rumer rummo rummu rumor ruomu rurec u-cee uber- ubobo ubume ucero umbe- umber umbre umbro umeer umeme umore umour uouee ureme ureo- uroob urour urubu uruce urucu uuuuu