ppur pre- preb pree prep pret preu pri- prie prii pro- prob proe proo prop prot prou prri prti prtp prtr prue prut pruu pter ptop ptui pu-e pube pubu pueo puer puet pueu puir puit puiu pupe pupi pupu pur- purb pure puri puro purp purr puru put- pute puti puto putt putu rbbb rbbr rebb rebe rebo rebu reeb reep reet reii reir reit reiu reop reot reou repe repi repo repp repr rept repu rere reri rero rert reru rete reti reto retr rett reue reup reut reuu rib- ribe ribo ribu riep rier riet rieu riot riou ripe ripi ripp ripr ript rire riri rite riti rito ritt ritu riue rob- robb robe robi robo robt robu roer roet roio roir roit roiu roob rooi roop roor root rope ropo rore rori roro rort roru rote roti roto rotr rott roub roue roup rout rpet rpii rpob rpoe rrrr rtee rtei rttp rubb rube rubi rubp rubu ruer ruet ruit rupe rupp rupt rure ruri ruro rurp ruru rute ruti ruto rutt rutu tbit tbrb tbtp tebo tebu teer teet teie teip teir teiu teor tepe tepi tepp tepu ter- tere teri tero terp terr teru tete teti teto tetr tett tetu teut tibi tibu tie- tiee tiei tieo tiep tier tiet tiit tiiu tiop tiou tip- tipe tipi tipo tipp tipt tipu tirb tire tiri tiro tirr tiru tite titi tito titp titt titu tobe tobi tobo tobt tobu toee toei toer toet toie toit toor toot top- tope topi topo topp topt topu tore tori toro torp torr tort toru tote toti toto totr tott toui toup tour tout tper tpir tppp tppr tpte tptp tptr tput tre- tree trei treo tret treu tri- trib trie trio trip trit troe troi troo trop trot trou trpe trpp trte trtr trub true trut truu ttbb tteo tter ttoe ttop tttt tubb tube tubo tubr tubu tuei tuer tuet tuit tuiu tuor tupe tupi tupo tupu turb ture turi turo turp turr turt turu tute tuti tuto tutt tutu tuuo u-ie u-rp ubbe ubbi ubbo uber ubet ubii ubir ubit ueir uepi uipi uirr uor- uore upbe upie upor uppe uppp uppu upri upto upup urbe urbi ure- uret urib urie uriu uro- uroo urpo urre urri urte urup urur urut utep uter utor utri utti utto uttu uuri uuuu

-tree bbbee be-er be-ro beber bebop bebot bebti beebe beepi beeri beete beeut beibi beier beipu beire beite beoir beote beour bepop beppe beppo beppu berbe berei beret berie berio berit beriu berob beroe beror berre berri berru berte berti berto betee beter betie betio betoo betor betou betre bett- bette betti betto beuer beure beute bibbe bibbo biber bibie bibio bibri biebe biere bieri biert bieti bieup biore bioue bipib birie birou birur biter bitit bitop bitru bitte bitti bitto bitup biure bo-bo bobbi bobet bobr bobre bobri bobup boero boeur boibe boier boire boiro boite boito booer booit boore boort booru bopet bopit borbo boree borer boret borio boro- boroo borot borou borre borro borup borut botet botie botou botro botte botti bottu bouee bouer bouet boure bouri boute bouto brebu breer breet breit breo- brere breto brett breu- bribe brier briot briou brite brito britt brobo broer broto broue brout brrrr bruer bruet bruit bruiu bruri brute btr-t bubbe buber buipe buire buret burie burio buroo burri burro burru burte burtt burut buteo buter butit buto- butor butot butou butte butuo butut e-pro ebber ebbet ebbie ebert ebibe eboue ebrio ebure eeeee eepee eerie eetti eieio eipri eirie eiter eitri eorre epopt epote eppie epptb epure erbbe erber erept erere erier erio- erite eritu eroor erore eroto error errtu erte erter erupt etete etio- etite etoro etour etree etter ettie eturu eubie eubro euro- europ eurre i-beo i-bet i-bot ibbur ibero ibert ibeti ibibo ibore iebet ieiri iepe ieper ierei ieroe iette iiiee iiiii iitti iobit ioooi ioooo iorio iotit iotti iperu ipeti ipiti ipopt iport ipour ippee ippei ipubi irbit irepo irete irite irobo irori irour irrep irrit irupi itbit itero itete itire itobi itour itout itpro itrip itter ittoo ittre ittti itu-r itu-t ituri ituro ituru itutu iuput iurie o-r-b obbet obeie obert obete oboro obote oboue obout obreb oeiro oeppo oirot oitti oo-er oobit ooioo ooooo oorie opepe opere opier opiet opio- opir opito opobo opper oppie opter optio opto- optot optto orbit orbot orebi oreo- oreoi orere orero oribe oribi orito orobe orobo oroer oropi orout orpit orret orter ortet ortoo orube oruro orutu otere oteri otero otobi otori ototo otour otpor otter ottir ottoi ottur oture oubit oubut ouert ouir- ouoro oure- ourie outer outie outre outro outto p-rep pebi- pebie pebre peebo peebu peere peeri peert peete peire peirt pepee pepoi peppe peppi pept- pepto pepup perer peret peri- perie perio perit perot perou perre perri perro perte perti perto perur petbe peter petie petit petr- petre petri petro petru pette petti petto petur peure pibor piere pieri piero piert pieup piibe piiri piotr piper pipet pipit pippi pippo pipri pirie pirot pirou pirre pirri pirro pirui piter pitie pitio pitip pitot pitre pitri pitru pitti pitto piuri piuro piuru piute po-po pobe poeir poete poeti poiet poipu poire poite pooer poope poopo poore poori poort poote poper popet popoi popop poppe poppi poppo popup poreb porer poret poro- poroi porri porro porte porto portu porur poteb potee poter potoo potop potor potpe potro potte potti potto pottu pouer poupe poure preie preop prete preti preto prier priit priob prior prite priti pritt probe probo proer proor proot prop- prope propp propr propt prore prot- proti proto prout prtor prute pter- ptere pteri ptero ptprb ptpre ptpro ptprr ptprt ptpru puber pubo- pueri puero puett pupet puppe puppo pupri puree purer purie purio puro- purre purte puter putit putor putre putt- putte putti putto puttu putuo putup puuri re-up rebbe reber rebet rebit rebop rebut reepe reere reeti reoti repet repit repop repor repot reppe repro reprt