ktoo ktor ktot ktrc ktre ktrf ktrk ktro ktrr ktrt ktru kttc kttf kttk ktto kttr kttt kttu ktuc ktuf kucc kuce kuco kucr kuek kueu kufc kuff kufo kufr kuke kukk kuku kuok kuoo kure kurk kuro kurr kurt kuru kute kutf kuto kutr kutt kutu kuuk kuur kuuu o-eo occc occt oce ocee ocef ocet ocke ocre ocro ocrr oct- octe octo ocur oec- oecc oeec oere oeuf ofcr ofek ofer off- offc offe offo offr offu ofor ofre okcu oker oket okko okok okor okot okre okro okto okur oocr ooer ooff ooku oooo oore oort orce orco ore- orec orek oreo orer orfe orff orfu orke orko oro- oroe orof orok oror orot orro ortc orte orto otee oter otfc oto- otoe otof otok otoo otor otre otro otte otto ottu otur oucc ouer oufc oufe ouff our- oure ouro ourt out- oute outo ouu- rccc rcet rcfc rctc recc rece reck recr rect recu reef reek reet refe reff refr reft refu reke reko rekt reof reot reou rere rero rert reru rete reto retr rett reue reuf reuk reut reuu rfef rffc rftc rkkf rocc roce rock roco roer roet rofc rofe roff rofo roke rokk roko rokr roku roof rook roor root rorc rore rork roro rort roru rotc rote rotk roto rotr rott roue rouf rouk rout rrfc rrrr rtcc rtce rtee rtfc ruce ruck ruct ruer ruet rufc rufe ruff rufo ruft ruke rukk ruku ruok rurc rure ruro ruru rute ruto rutt rutu tccc tccu tcfc tctc teck teco tecr tect teec teef teek teer teet tefc teff teft teke teok teor ter- terc tere terf terk tero terr teru tete teto tetr tett tetu teuk teut tfcu tfec tfot tftc tkof toce tock toco toee toek toer toet toff tofo toft tofu toke toko toku toof took toor toot torc tore torf tork toro torr tort toru totc tote toto totr tott touk tour tout trcc tre- trec tree tref trek treo tret treu trfc trfr troc troe troo trot trou trtc trte trtr truc true truk trut truu tteo tter ttfc ttff ttoe tttt tucc tuck tuco tuer tuet tufc tufe tuff tufo tuft tufu tuke tuko tuor turc ture turf turk turo turr turt turu tute tuto tutt tutu tuuo ucrc ucut ufcu ufer uffe ufuk ukcc ukek ukeu ukko ukok ukrc ukur uocc uofo uoke uor- uore ure- uret urfe urff urft urke uro- urok uroo urre urte uruk urur urut utec uter utfo utor utto uttu uuoc uutf uuuu

-tree c-cor c-tec ccccc ccett ceco- ceere cefcu cefor ceoce ceoor cerc- cerce cerco cerec cerer ceret cerke cero- ceroc cerou cerre cerro certe ceto- cette cfour cfu-e co-co cocc- cocce cocco coceo cocke cockt cocto cocur coete coeur cofer coffe cofre cofur coker coket cokk- cokot cooee cooer cooke cookt coore coote corce core- coree corer coreu corfe corfo corfu corke coro- corot corre corte corto coter cott- cotte cotto cottu couco couer coure court couru couto coutu crece creek creer creft creke creo- creot crete cretu creu- creue croce crock croco croft croke crokt crooe crook croot crore crote crott crouk crout cruce cruck cruet crufe cruft cruke cruor crure ctree cttee cucuk cuero cueto cufeu cuffe cufre cuker cukor cuoco cuore curce curer curet curre curro curto cutco cutcu cutee cuter cutro cutto ecker ecoff ectfe ecto- ector ectot eecke eeeee ef-tu efere efetf effer effet efore efter efuru efutu ekeko ekker ektor ekuku ekuru eofor eorre erect erere erkec erkko erkoc eroor erore eroto error errtu erte erter eruct eruke eteke etete etoko etoro etour etree etrek etter eturu eucre euro- eurre feeor feere fefor feock feoff ferce feret ferr- ferre ferro ferte feter feto- fetor fette feuer feute focer focke fokke fokto foore foote force fore- foreo foret forro forte forto forur fotte fotur fouee fouet fouke foure fouro freck freek freer freet freke frere frett freur frock froot frore frote fruct fruko frute fruto ftrtt fu-fu fucko fuco- fuero fuoco furo- furor futur k-ute kecer keefe keere kefee kekec kerek keret kerre kertu ketek keter keto- ketou kette ketto ko-ko kocek kocer kocke koeru kofte koker koket kokko kokor kokot kokou kokre kokur kokut kooru korck korec korek korff korke korku koror korro korte kortu korue koruk kotor kotto kottu kotur kouer koufu koure kouto kre-o kreef kreek kreke kreo- krete kreuk krock kroft kroke kroot krout krtok krufc kruft kruto kucer kucuk kukec kukko kukok kukur kurek kurku kurre kurte kuruc kuruk kutte kuttu kutur o-fer occur ocftc ocker ockro ocoee ocote ocree octet octo- octor oeco- offek offer offof offre offto ofoto ofour ofter okeke okere oketo okker okkur okoc okoro okrut okuku okuru oo-er oocre ooooo orcet oreck oreco oreo- orere orero orfeo orfeu orfoe orfor orkut oroco oroer oroke orout orret orter ortet ortok ortoo oruce oruku oruro orutu otere otero otoce otoku ototo otour otrok otter ottur otuke oture ouert ouoro ource oure- outer outof outre outro outto r-co- recce recco recet recke rect- recte recto recue recur recut reece reefe reeft reere refco refer refet reffe reffo refut rekke rere- reree reret retee reter retro rette retto reuer reuet reute ro-ro rocco rocke rocko rocor rocou roero roffe rofor rokee roker roket rokke rokkk rokot rokto rooer roofe rooft rooke roore roote rooue rorer rorke roter rotko roto- rotor rotot rotte rotto rouer rouet roufe rouke rouko roure route routt rt-rk rucer ruere ruete ruffe ruffo rufo- rukke rurec ruter rutte ruutu tcutk tecou teeko tefe teket tekke tekko teoco terce terco terek teret tereu terok teror terre terro tert- teruo teter tetr- tetro tette teuto tocco toco- tocut toece toeof toerr toeto tofet toffo tofor tofte toker tokke tokko toko- tokor tokuo tokur tooke toore torce toreo toret torke torok torre torro torte torto tortu torue toter toto- totoe totok totoo totte touck touke toure touro toute treck treco treer treet trefe treff trere trete trett treut trock troco troee trofe troff troft