rcet rcfc rcle rctc rebb rebe rebu recc rece recr rect recu reeb reef reel reet refe reff refl refr reft refu relb rele rell relt rere rert reru rete retr rett reue reuf reul reut reuu rfef rffc rffl rftc rlee rlef rleu rrfc rrle rrrr rtbf rtcc rtce rtee rtfb rtfc rtle rtlt rubb rube rubu ruce ruct ruel ruer ruet rufc rufe ruff ruft rule rull rurc rure ruru rute rutl rutt rutu tbcb tbcc tbce tbrb tccc tccu tcfc tctc tcul tebu tecl tecr tect teec teef teel teer teet tefc teff tefl teft tel- telc tele tell telt telu ter- terc tere terf terr teru tete tetr tett tetu teut tfcu tfeb tfec tftc trcc trcl tre- trec tree tref tret treu trfc trfr trtc trte trtr trub truc true trut truu ttbb tter ttfc ttff tttt ttul tubb tube tubr tubu tucc tuel tuer tuet tufc tufe tuff tuft tufu tule tull tulu turb turc ture turf turr turt turu tute tutl tutt tutu ubbe uber ubet uble ubtf ucbc ucel ucfb ucrc ucut uele uell ufcu ufel ufer uffe ulbc ulcc uleb ulee ulfe ulft ulle ullr ultt ulul urbe ure- uret urfe urff urft urle urre urte urur urut utec utel uter uttu uulu uutf uuuu

-tree bbbee bcell be-er bebel beber becel becue becut beebe beeft beele beete beeut beffe befur belce belec belee belef belet bellb belle belue belur belut berbe bercu berec berel beret berle berre berru berte betee betel beter betle betre bett- bette betul beuer beule beure beute bleer bleet bleft blere blete bleue bluer bluet bluff blufr bluft blurb blure blurr blurt brebu brece breef breel breer breet brell brere brett breu- brrrr bruce bruer bruet bruff brule brull brute btc-e btr-t bubbe buber buble bucet bucur buell bufet buffe bufle bulb- bull- bulle bulul bulut burcu burel buret burle burru burte burtt buruc burut butec buter butle butte butut c-tec cbeff cbeft cblue ccccc ccell ccett cclef ccrcl ccrel cctrl cebec ceber ceele ceere cefcu celeb celer cell- celle celte cerbu cerc- cerce cerec cerer ceret cerre certe cette cfler cfu-e clcff cleef cleer cleet clefe cleft clerc clere clete clett clubb clue- cluer clufe cluff clurr clute clutt crebe crece creel creer creft crele crell crete cretu creu- creue creul crrel cruce cruel cruet crufe cruft crule crull crure ctcfl ctree ctrlc cttee ctulu cubbe cubeb cubel cuber cubub cufeu cuffe cufre culbe culet culle cullu culur curce curel curer curet curle curll curlu curre cutcu cutee cuter cutle cuuel ebber ebbet ebble ebell eberl ebert eblul ebull ebure eccle ectfe eeeee eeler ef-tu efere efetf effer effet eftel efter efuru efutu elect eleet elele eleut ellel eller ellet ellul elrec elulu eluru elute erbbe erber erect erere errtu erte ertel erter eruct etete etree ettel etter ettle eturu eucre euell euler eurel eurre fclef febel feble febre feele feere felce felet felle felte feltt ferce ferel feret ferle ferr- ferre ferte fetel feter fette feuer feule feute flect fleer fleet flere flert flete flett fleur fluce fluff flurb flure flurr flurt flute freel freer freet frere frett freur fruct frute ft-lb ftlee ftrtt fu-fu fulbe fulle fullf furel futur lebce lebec lebel leber lebet lecce leece leell leere leert lefeu leffe leftb leful leleu lelle lerer letbe letre lette letur leuc- leuce lubbe luber luble lubur lucee lucet lucre lucur lufre lufte lulec lulle lulte luluc lulul lurer lurue lute- luter lutte rebbe rebec rebel reber rebet rebut recce recet rect- recte recue recur recut reece reefe reeft reere refel refer refet reffe refut relee relet relte relue rere- reree reret retee retel reter rette reuel reuer reuet reule reute rubee rubel ruber ruble rucer rucul ruele ruell ruere ruete ruffe ruler rurec ruter rutle rutte rutul ruule ruutu tbtbt tbutt tcell teber tebet tectb tecul teele teell tefe telce tele- telec teler teleu tell- telle terce teret tereu terre tert- tetel teter tetle tetr- tette tlell tlett tllbr treer treet trefe treff trele trere trete trett treut trubu truce truel truer truff trule trull trute ttttt tuber tubul tucet tuctu tuelf tuell tuelt tuffe tufte tulce tulet tulle turbe turbt turel turet turle turre turtu turul turut tutee tutel tutle tutte tuuru u-cee ubble uber- uccel uccle ucell uclue uelfe ufere ulcer ullet ullur ultre ululu uluru urcel urelu urtel urter urtlu urubu uruce urucu urutu uter- utter uttur utube uturu uuuuu

-elect b-reel b-tree bbbbbb beblur becure becurl beebee beefer beeler beeter beetle befell beflee befree befret belber beleft belett beller bellet belleu bellue beltel belter beltre belull belute berbee berber bercel bereel bereet bereft berere berrer berret bertel bertre berube betell betelu betere betete betrue bettee bettel better bettle betutu beurre bleere blefte blublu bluett blurre bluter brebel breefe breere bretcu brette breuer brubru bruel brufut brulee bruree brutel bubber bubble bubele bububu bueler buellt buffel buffer buffet buffle bulbel bulbul bull-e bullee buller bullet bultel bulter burbet burble burbur burcer burell burfee burler burlet burree burrel burrer burret burtle burutu butere butler buttel butter buttle butucu c-clef c-cube cebell cecele ceecee ceeler celler cellu- celtel celter celure cercle cerete cerler ceruce cerule cleber cleefe cleere clerre clerte cleure clucer cluett clutte creete crelle cruell cubbel cubber cubert cubube cucube cucurb cuffee cuffer cuffle culbut culler cullet cultel culter cultre curber curble curete curfur curler curlet currer curret curtel curter curtle curule cutcut cutler cutlet cuttee cutter cuttle ebbert eberle ebrulf eburru eclect eculee eebree eerect eeuler efecte efeler effect effere effete effutu efreet efter- elbert elbeuf electr eleele ellett elutec erbree erfurt errett etcetc ettutu eubule euller eutere feeble feeler felber feller felter feltre ferber ferfel ferfer ferlut ferrel ferrer ferret ferrur fertee ferter ferule fetter fettle feture feuter fleble fleece fleete fletre fleure fluber flurre flurte fluter flutte freele frefre frelte fretel frette freure fructe fterer fterre fubble fueler fuerte fuffle fulcre fuller furber furfur furler furlet furrer furrfu furtle futrel futret futter future lebert lebret leccer lecerf