potw powe powp powr powt ppcc pper pppo pppp pprc pptt prcc prcp pre- prec pree prep pret prew pro- proc proe proo prop prot prow prtc prtp prtr ptcc pter ptop pttc rccc rcep rcet rcpo rcpt rctc rcwp recc rece rech recp recr rect reep reet rehe reht reop reot repe repo repp repr rept rere rero rert rete reth reto retr rett rewe rhce rhcp rhee rheo rhet rhoc rhoh rocc roce roch roco roer roet rohe rohr roop roor root rope ropo rorc rore roro rort rotc rote roth roto rotr rott rowe rowh rowp rowr rowt roww rpet rpho rpoe rrrr rtcc rtce rtee rttp rwch tccc tcep tch- tche tchh tcho tchp tchr tcpo tctc tech teco tecr tect teec teer teet teho tehr teoh teor teow tepe tepp ter- terc tere tero terp terr tete teth teto tetr tett tewo thch the- thec thee theo thep ther thet thew thhp thoe thoo thor thot thow thpp thre thro thrw thtr toce toch toco toee toeh toer toet toho tooh toor toot top- tope toph topo topp topt torc tore toro torp torr tort totc tote toth toto totr tott towe towh tpcp tper tppp tppr tprw tpte tptp tptr trcc tre- trec tree treo tret trew troc troe troo trop trot trow trpc trpe trpp trtc trte trtr trwe ttcp tteo tter ttoe ttop tttt twch twee twep twer two- twoc twoh twoo twop twot twrp wccc wcce wcch wcco wccp wccr wcct wccw wcec wcee wceh wceo wcer wcet wchc wche wcho wchp wchr wcht wcoc wcoe wcoh wcoo wcop wcor wcot wcpc wcpe wcph wcpo wcpp wcpr wcpt wcrc wcre wcrh wcro wcrp wcrr wcrt wcrw wctc wcte wcth wcto wctp wctr wctt wctw wcwc wcwp wecc wech weco wecr wect wecw weec weeo weep weer weet wehc wehh wehp wehr weht weop weow wepe weph wepp wepr wept wer- werc were werh wero werp werr wert werw wetc wete weth weto wetr wett wewc wewe wewo whcc whce whco whcp whcr whct whec whee wheo whep wher whet whew whhh whho whhr whht whhw whoe whoo whop whor whot whow whpc whph whpo whpp whpt whr- whrc whre whrh whro whrp whrw whtc whth whto whtp whtt whwc whwh wocc woce woch woco wocr woer wohc wohe woht wooc woop woot woow wopc wopp worc wore woro worp worr wort worw wotc wote woth wotr wott wotw wowc wowe wowo wowp wowt woww wpcc wpce wpch wpcr wpct wpcw wpec wpeh wpeo wpep wper wpet wphc wphe wphp wphr wpht wpoc wpop wpor wpot wpow wppc wppr wppt wpre wpro wprp wprr wprt wptc wpte wpth wptr wptw wpwc wpwt wrce wrch wrco wrcr wrct wrcw wrec wree wreh wrer wret wrew wrhc wrho wrht wroc wroo wrop wrot wrow wrpp wrpr wrpw wrrc wrre wrrh wrro wrrw wrtc wrte wrth wrto wrtp wrtr wrtw wrwc wrwh wrwr wtcc wtch wtco wtcp wtcr wtct wtcw wthe wthr wtht wtoc wtoe wtoh wtor wtot wtow wtpr wtpt wtrc wtre wtrh wtro wtrp wtrt wtrw wttc wtte wtth wtto wttr wttt wttw wtwo wtwr wtwt wtww wwch wwco wwcr wwct wwcw wwec wweo wwer wwet wwho wwhp wwhr wwht wwor wwot wwow wwpc wwph wwpr wwpt wwpw wwrc wwre wwrr wwrw wwtc wwth wwtp wwtr wwtw wwwc wwwe wwwh wwwr wwww

-tree c-cor c-p-c c-pop c-tec ccccc ccett cech ceche cecht ceco- ceere ceoce ceoor cepet cepot ceppo cerc- cerce cerco cerec cerer ceret cero- ceroc cerre cerro certe ceto- cette chech cheep cheer cheet cheho chehr cheo chepe chepo chere chero cherp chert chete cheth cheto chett chher choco choop choor chope chopt chor- chore choro chort chote chott chowp chwot co-co co-op cocc- cocce cocco coceo coche cocow cocto coepe coete cohee cohoe cohoo cohow cooch cooee cooer coope coopt coore coote cooth copce copec coper coppe coppo copr- copre copro copte copto corce core- coree corer coro- corop corot corpe corre corte corto cotch coter cothe cott- cotte cotto cowch cowee cower cowpe cowre cpctc cphpc crece creep creer creo- creop creot crepe crept crete crewe croce croco crooe croop croot cropc crope cropo crore crote croth crott crowe crowp crwet crwth cteep ctree cttee cwtch e-pro eccho echte ecorp ecthr ecto- ector ectot eeeee eepee eetch ehret eocho eorre epcot eperc epher ephor epoch epopt epote erech erect erept erere erewe eroor erore eroto errew error erte erter erthe etche etete ether etho- ethoc etoro etree etter etwee ewert ewhow h-cho h-tcp hcooh he-he he-ro hecco heche hecht hect- hecte hecto heepe heere heete hehte heore hepco heper hepet hepro hept- hepto herce heroe herpt herre herro herte herth herto hetch heter hethe hetop hette hetto hewch hewer hewho hewto hewwo hheth hhhhh ho-ho ho-oh hocco hoche hohoe hohot hooce hooch hooer hoope hoore hoort hopeh hoper hoppe hoppo hopto horce horch horhe horow horre horro horth horto hotch hotep hothe hothr hotot hotte hotto howco hower howre howth howto howwe hreoc hrere hroch hropt hrrep hthrt htree httpr htwoo ocher ochre ochro ocoee ocote ocree octet octo- octor oeco- oeppo oerth oh-oh ohchr ohhow ohrot ohthe ohwow oo-er oocre ooher ooooh ooooo oothe oowee opepe opere opeth ophep opoho opper opter opto- optot optto orcet orcop orech oreco oreo- orere orero orhow oroch oroco oroer orphe orret orrow orter ortet orth- orthe ortho ortoo ortwo orwoe otere otero other othre otoce ototo otpor otter owche owcht oweth oweto owher owre- owte- owtte p-rep pcept pcert pctct pecco peche peece peere peert peete peeth pepco pepee peppe pept- pepto perce perch perec perer peret perho perot perre perro perte perth perto petch petco peter petr- petre petro pette petto pewee pewet pewpe pewre phccc phecc pheer pheo- phere phore phot- photo phpht phrop phtpp po-po poche pocho pocop poete poher pooch pooer poope poopo poore poort poote popco poper popet popop popow poppe poppo porch porco porec porer poret poro- porro porte porth porto potch potco potec potee