bbbee be-er be-ro bebel beber beblo bebop beebe beele beffe befoe befol befor befur belbo belee belef belep bellb belle bello belue belur beofe beoff beour bepop beppe beppo beppu berbe berel berle berlo berob beroe berol beror berre berru beuer beule beure bleep bleer blere blerp bleue bloef bloop bloor blorb blore blorp bloue bluer bluff blufr blurb blure blurr bo-bo boble bobr bobre bobup boeol boero boeuf boeur boffo bolbe bolel boleo boler boll- bolle bollo bollu booer boole boore booru borbo boree borel borer borle boro- boroo borou borre borro borul borup bouee bouel bouer boul- boule boulo boure brebu breef breel breer brell brelo breo- brere breu- brobo broer brole broll brolo brool broue brrrr bruer bruff brule brull bubbe buber buble buell buffe buffo bufle bulb- bull- bulle bulou bulul burel burle burol buroo burro burru e-pro ebber ebble ebell ebelo eberl eblul eboue ebull ebure eeeee eeler eepee efere effer efore efuru el-op elele eleo- ellel eller elloe ellul eloee eloff elole eloor elope elore eloro elpee elper elrob elubo elulu eluru eofor eorre epoll epulo epure erbbe erber erere eroor erore erpel errol error eubro euell euler eurel euro- europ eurre febel feble febre feele feeor feere fefor felle felup feoff feole ferel ferle ferlo ferr- ferre ferro feuer feule fleer flere flero fleur floop floor flore floro floru flour fluff fluo- fluor flurb flure flurr folle follo foole foore fore- forel foreo forro forur fouee fouel foule foupe fourb foure fouro freel freep freer frere freur frobe froop frore froup fu-fu fuero fulbe fulle fullf fullo fulop fulup furbo furel furo- furor l-pop lebel leber leell leeof leere lefeu leffe lefou leful lelep leleu lelle lepel leper lepo- lepor leppe lepre lerer leupp leuro lobbe lobbo lober loble lobo- lobor lofer loffe lofou loler lollo lolol loobu looer loore loper lopou lorel loreo lorer lorre lorup louer loule loupe loure louro lubbe luber luble lubur luebo lufre lulle lulul luper luppe lupul lurer lurue lurup o-fer o-r-b obele obole obolo oboro oboue obreb oeppo oerel oerle offer offof offre ofour ofpop oleo- olere olleo oller ollup ollur olour oo-er ooooo opele opelu opepe opere oploo opobo opole oppel opper oppol orble orell oreo- orere orero orfeo orfeu orfoe orfor orful orlop orobe orobo oroer orolu orube oruro oullo ouoro oure- ourol p-rep pebre peebo peebu peele peell peere peerl pelbo pelee peler pelle pello pelo- peloe pelor pelou peole pepee pepel peple peppe pepup perel perer perle perlo perou perre perro perur peule peure pforp pfuel plebe pleep plelo pleo- ploef ploop plopp plopu plore pluff plupp po-po pobe poele polbo poler polle pollo pollu poloe polop polur pooer poole poope poopo poore popel poper pople poplr popop poppe poppo popup poreb porer porle poro- porro porur pouer pouff poule poulp poupe poure preef preff prell prelp preop prepl probe probo proer profe proff prole proll prolo proof proor prop- prope propl propp propr prore puber puble pubo- puelo puero puleo puler pull- pulle pullu puple puppe puppo puree purel purer purle puro- purre purul re-up rebbe rebel reber rebol rebop reefe reepe reere refel refer reffe reffo relee rello relue repel reple repop repor reppe repro repub rere- reree rerob reuel reuer reule ro-ro robbe robbo rober roble robo- robop robor robur roell roero rofel roffe rofor roleo rolfe rolfo rolle rollo rooer roofe roole roope roore rooue roper roppe rorbu rorer rouer roufe roule roull roure rperf rprop rubee rubel ruber ruble rubof rubor rubup ruele ruell ruere ruffe ruffo rufo- rufol ruler rullo rupee rupel ruper ruule u-pop ubble uber- ubobo uelfe ufere ufofu uforb ullur uloop ulpur ululu uluru uouee upfor upoff upolo upolu upper urelu ureo- uroob urour urubu urupe uuuuu