peru pese pess pest pesu pete petr pets pett peur peut ppcc ppcs pper pppp ppps pprc ppru ppss ppts pptt ppur prbc prbs prcc prcp prcs pre- preb prec pree prep pres pret preu prps prrs prsc prse prss prtc prtp prtr prue prus prut pruu psbr psbt pscu pseb psec pspp pspr psps psrp pssc psse psst psts pstu ptcc pter pttc pu-e pube pubs pubu puce puer puet pueu pupe pups pupu pur- purb pure purp purr purs puru puss pust put- pute puts putt putu puuc rbbb rbbr rbbs rbsp rbss rbst rcbc rccb rccc rccs rcep rcet rcps rcpt rcsc rcss rctc rcts rebb rebe rebs rebu recc rece recp recr recs rect recu reeb reep rees reet repe repp repr reps rept repu rere rers rert reru rese resp ress rest rete retr rets rett reue reup reus reut reuu rpcs rpet rpps rpts rrrr rrsp rscc rscs rsee rspb rsps rsre rstp rsts rstu rtcc rtce rtee rtes rtps rtss rttp rtts rubb rube rubp rubs rubu ruce ruct ruer rues ruet rupe rupp rupt rurc rure rurp rurs ruru ruse russ rust rusu rute ruts rutt rutu sbbs sbcc sbcs sbct sber sbse sbsp sbst sbtc sbus sccc scce sccp sccs scct scec scee scep scer scet scpb scpe scps scpt scr- scrc scre scrs scsc scsr scst scsu sctc sctr scts scub scup scur scut se-c se-e se-s se-t se-u sebe sebs sebt sec- secc sece secr secs sect secu seeb seec seep seer sees seet seeu sepe sepp sepr seps sept sepu serb serc sere serp serr sers sert seru sesc sese sess sest set- setc sete sets sett seur spcc spcs speb spec spee sper spes spet spps sprs spse spsp spss spst sptb sptc sptr spts spue spur spus sput srbc srcc srct sreb srec sres srpc srps srpt srsp srtp srtr srub ssbr sscc ssce sscp sscs ssec ssee ssep sses sset sspc sspe ssps sspt ssrc ssrs sssb sssc ssss sstb sstc sstp ssts stbc stbs stcc stcp stcs stcu stec stee step ster stes stet stpp stps strc stre strs stru stss sttc sttr stub stuc stue stup stur stus stut sub- subb subs suc- succ sucr sucs suee suer sues suet sueu sup- supe supp supr sups supt sur- surc sure surp surr surs surt suru sus- suse susp suss sust susu sute sutu suus tbbs tbcb tbcc tbce tbrb tbsp tbst tbtp tcbs tccc tccu tcep tctc tcts tebu tecr tecs tect teec teer tees teet tepe tepp tepu ter- terc tere terp terr ters teru tesc tese tesp tess test tete tetr tets tett tetu teut tpcp tpcs tper tppp tppr tprs tpsc tpte tptp tptr tput trcc tre- trec tree tres tret treu trpc trpe trpp trps trst trtc trte trtr trub truc true trus trut truu tsbc tscc tscp tsec tses tset tsps tspt tsse tssr tsst tstc tsts tsup ttbb ttcp tter ttss tttt tubb tube tubr tubs tubu tucc tuer tues tuet tupe tups tupu turb turc ture turp turr turs turt turu tusc tuss tust tute tuts tutt tutu u-rp ubbe uber ubet ubpc ucbc uccp uces ucpb ucrc ucsb ucsc ucst ucsu ucut uers uess upbe upcs uppc uppe uppp uppu upsc upse upup urbe urbs ure- ures uret urre urse urss ursu urte urts urup urur urus urut usbc usbe usbr usbs uscc usce uscs usee user uses uset uspc uspp usps ussb ussc usse ussr usss usst ussu ustb ustc uste ustp usts usus utec utep uter utes utsc uttu uucp uuuu

-tree bbbee bbser bbsrc bbuss bcbst bccup bcers bcups be-er beber bebes becue becut beebe beebs beeps beers beest beete beets beeut beppe beppu berbe bercu berec beres beret berre berru berse berte berts berus besee beset besse beste bests besut betee beter betes betre betrs bett- bette betts betus beuer beure beust beute brebu brece breer brees breet brere brers brese bress brest brets brett breu- brrrr brsec bruce bruer brues bruet bruse bruss brust brute bsure btc-e btr-t btstu bubbe buber buces bucet bucsu bucur burbs burcu bures buret burps burrs burru burse burst burte burts burtt buruc burus burut buser buses busse bussu buste busts busur busut busuu butec buter butes butte butts butut c-bus c-p-c c-tec cbers ccccc ccett ccups cebec ceber cebes cebpb cebpe cebus ceere ceese cepes cepet cerbu cerc- cerce cercs cerec cerer ceres ceret cerps cerre cerrs cerse cerss certe certs cerus cesce cescr cesse ceste cests cetes cette cetus cpctc cpesc crebe crece creep creer crees crepe crept crepu cresc crese cress crest crete cretu creu- creue creup crres cruce cruet crupe crure cruse crust cruts csere csprs cstcc cteep ctree cttee cubbe cubeb cuber cubes cubub cuers cueup cuper cupes cupr- curbs curce curer cures curet curre currs curse curst curts curup cusec cuser cusps cusse custe cutcu cutee cuter cutes cutts cutup e-cps ebber ebbet ebers ebert ebure eccup ecrus ecser ecspp ecups eeeee eepee epees eperc epeus eppes epptb epubs epure erbbe erber erebs erecs erect erept erere erest erets erres errtu erses erste ersts erte erter ertes erubs eruct erupt eruts esbus esces escrt esect esere esp-r espec esper espre esser esses essse essue estce estee estep ester estes estet estre estur estus esure etest etete etree etres etter ettes eturu eucre eurre eurus euser p-rep pbers pccts pcept pcert pctct pebre peces peebu peece peeps peere peers peert peese peest peete peets pepee pepes peppe pepst pept- pepup perce percs perec perer peres peret perps perre perse persp perst perte peruc perur perus pesce peses pesse peste pests pesut petbe petcu peter petes petr- petre petru pette petts petur petus peuce peure peurs ppers prece prees preps prese press prest prete preus pruce pruss prute psecu pssst pssts ptcrb pter- ptere pters ptprb ptprc ptpre ptprr ptprs ptprt ptpru puber pubes puces puets puett pupet puppe purce puree purer pures purre purrs purse purte purus pusce puter putre