bbbee be-er be-ro bebel beber beblo beebe beele beffe befoe befol befor belbo belee belef bellb belle bello beofe beoff berbe berel berle berlo berob beroe berol beror berre bleer blere bloef bloor blorb blore bo-bo boble bobr bobre boeol boero boffo bolbe bolel boleo boler boll- bolle bollo booer boole boore borbo boree borel borer borle boro- boroo borre borro breef breel breer brell brelo breo- brere brobo broer brole broll brolo brool brrrr ebber ebble ebell ebelo eberl eeeee eeler efere effer efore elele eleo- ellel eller elloe eloee eloff elole eloor elore eloro elrob eofor eorre erbbe erber erere eroor erore errol error febel feble febre feele feeor feere fefor felle feoff feole ferel ferle ferlo ferr- ferre ferro fleer flere flero floor flore floro folle follo foole foore fore- forel foreo forro freel freer frere frobe frore lebel leber leell leeof leere leffe lelle lerer lobbe lobbo lober loble lobo- lobor lofer loffe loler lollo lolol looer loore lorel loreo lorer lorre o-fer o-r-b obele obole obolo oboro obreb oerel oerle offer offof offre oleo- olere olleo oller oo-er ooooo orble orell oreo- orere orero orfeo orfoe orfor orobe orobo oroer rebbe rebel reber rebol reefe reere refel refer reffe reffo relee rello rere- reree rerob ro-ro robbe robbo rober roble robo- robor roell roero rofel roffe rofor roleo rolfe rolfo rolle rollo rooer roofe roole roore rorer