okto okur oobe ooer ooku oooo oore oort ootb ootp opep oper opet opo- opor oppo opto orbb orbe orbo orbu ore- oreb orek oreo orer orke orko oro- oroe orok oror orot orpe orro orte orto orub orup otee otep oter oto- otoe otok otoo otor otpp otre otro otte otto ottu otur ouer oupe our- oure ouro ourt out- outb oute outo ouu- pbpk peek peep peer peet peke pekk peko peor peou pepe pepo per- pere perk pero perp perr pert peru pete peto petr pett peur peut pobo poer poet poke poko poku pook poop poor poot pop- pope popo popp popt porb pore pork poro porr port pote poto pott potu pouk poup pour pout pper pppo pppp ppru pptt ppur pre- preb pree prek prep pret preu pro- prob proe proo prop prot prou prtp prtr prue prut pruu pter ptop pttk pu-e pube pubu pueo puer puet pueu puke puku pupe pupu pur- purb pure puro purp purr puru put- pute puto putt putu rbbb rbbr rebb rebe rebk rebo rebu reeb reek reep reet reke reko rekt reop reot reou repe repo repp repr rept repu rere rero rert reru rete reto retr rett reue reuk reup reut reuu rob- robb robe robo robt robu roer roet roke rokk roko rokr roku roob rook roop roor root rope ropo rore rork roro rort roru rote rotk roto rotr rott roub roue rouk roup rout rpet rpob rpoe rrrr rtee rttp rubb rube rubp rubu ruer ruet ruke rukk ruku ruok rupe rupp rupt rure ruro rurp ruru rute ruto rutt rutu tbrb tbtp tebo tebu teek teer teet teke teok teor tepe tepp tepu ter- tere terk tero terp terr teru tete teto tetr tett tetu teuk teut tobe tobo tobt tobu toee toek toer toet toke toko toku took toor toot top- tope topo topp topt topu tore tork toro torp torr tort toru tote toto totr tott touk toup tour tout tper tpke tppp tppr tpte tptp tptr tput tre- tree trek treo tret treu troe troo trop trot trou trpe trpp trte trtr trub true truk trut truu ttbb tteo tter ttoe ttop tttt tubb tube tubo tubr tubu tuer tuet tuke tuko tuor tupe tupo tupu turb ture turk turo turp turr turt turu tute tuto tutt tutu tuuo u-rp ubbe ubbo ubek uber ubet ukek ukeu ukko ukok ukup ukur uoke uor- uore upbe upor uppe uppp uppu upto upup urbe ure- uret urke uro- urok uroo urpo urre urte uruk urup urur urut utep uter utor utto uttu uuuu

-tree b-r-k bbbee bbook be-er be-ro bebek beber bebop bebot beebe beeke beete beeut beker bekke bekko bekok beote beour bepop beppe beppo beppu berbe berek beret berk- berke berko berob beroe berok beror berre berru berte berto betee beter betke betoo betor betou betre bett- bette betto beuer beure beute bo-bo bobek bobet bobko bobok bobr bobre bobup boeke boekt boero boeur bokeo boker boket bokko bokok bokor booer booke booko boore boort booru bopet borbo boree borek borer boret borko borku boro- borok boroo borot borou borre borro borup borut botet botok botou botro botte bottu bouee bouer bouet bouke bouko boure boute bouto brebu breek breer breet breke breo- brere breto brett breu- brobo broek broer broke brook broto broue brouk brout brrrr bruer bruet bruke brute btr-t bubbe buber buker buket bukk- bukor burek buret burke buroo burro burru burte burtt buruk burut buteo buter butke butko buto- butor butot butou butte butuo butut e-pro ebber ebbet ebeko ebert ebook eboue ebure eeeee eepee ekeko ekker ektor ekuku ekuru eorre epopt epote epptb epuku epure erbbe erber erept erere erkko eroor erore eroto error errtu erte erter eruke erupt eteke etete etoko etoro etour etree etrek etter eturu eubro euro- europ eurre k-p-r k-pop k-rob k-t-b k-ute kebbe kebek keber kebob keepe keere keppe kerek kerep keret kerre kertu ketek keter keto- ketou kette ketto ko-ko kobee kober kobru kobuk koepp koeru koker koket kokko kokor kokot kokou kokre kokur kokut kooru kopek koper koppe kopru korbe korbo korek korke korku korop koror korpe korpo korro korte kortu korue koruk korup kotor kotto kottu kotur kouer koupe koure kouto kpebo kpote krbpe kre-o kreek kreep kreke kreo- krepe krete kreuk kroke kroot kropp krout krtok krupp kruto kubek kuber kubok kukko kukok kukup kukur kuper kuppe kupto kupur kurbu kurek kurku kurre kurte kuruk kurup kutob kutte kuttu kutur o-r-b obbet obert obete oboro obote oboue obout obreb obrok oeppo okbut okeke okere oketo okker okkur okobo okoro okrut okubo okuku okuru oo-er ooooo opepe opere opobo opoku opper opter opto- optot optto orbot oreo- orere orero orkut orobe orobo oroer oroke orout orret orter ortet ortok ortoo orube oruku oruro orutu otere otero otoku ototo otour otpor otrok otter ottur otuke oture oubut ouert oukup ouoro oure- outer outre outro outto p-rep pbook pbrok pebre peebo peebu peeke peere peert peete peket pekoe pekre pekto pepee peppe pept- pepto pepup perer peret perke perko perot perou perre perro perte perto perur petbe peter petko petr- petre petro petru pette petto petur peure po-po pobe poete poker poket pokot pokou pooer pooke poope poopo poore poork poort poote popek poper popet popop poppe poppo popup poreb porer poret porke poro- porro porte porto portu porur poteb potee poter potku potok potoo potop potor potpe potrk potro potte potto pottu pouer pouke poupe poure pre-k preke preko preok preop prete preto preuk probe probo proer proke proor proot prop- prope propp propr propt prore prot- proto prout prtor prute pter- ptere ptero ptprb ptpre ptprk ptpro ptprr ptprt ptpru puber pubo- puero puett puker pupet puppe puppo puree purer purku puro- purok purre purte puter putor putre putt- putte putto puttu putuo putup re-up rebbe reber rebet rebop rebut reepe reere rekke repet repok repop repor repot reppe repro reprt repub reput rere- reree reret rerob retee reter retop retro rette retto reuer reuet