spcc spco spcs spec spee spef sper spes spet spfc spfs spoc spoo spop spor spos spot sppf spps spro sprs spse spso spsp spss spst sptc spto sptr spts spue spur spus sput srcc srct srec sreo sres srfc sros srpc srps srpt srsp srtp srtr sscc ssce sscp sscs ssec ssee ssep sses sset ssfc ssfp ssoc ssop ssot sspc sspe sspf sspo ssps sspt ssrc ssrs sssc sssf ssss sstc sstp ssts stcc stcp stcs stcu stec stee stef steo step ster stes stet stfc stfu stoe stof stoo stop stor stos stot stou stpf stpp stps strc stre stro strs stru stsf stss sttc sttr stuc stue stuf stup stur stus stut suc- succ sucr sucs suee suer sues suet sueu suf- sufc suff sufr sufs sufu suor suos sup- supe supo supp supr sups supt sur- surc sure surf suro surp surr surs surt suru sus- suse suso susp suss sust susu sute suto sutu suus tccc tccu tcep tcfc tcos tcpo tctc tcts teco tecr tecs tect teec teef teer tees teet tefc teff teft teor teos tepe tepp tepu ter- terc tere terf tero terp terr ters teru tesc tese teso tesp tess test tete teto tetr tets tett tetu teut tfcu tfec tfot tfpt tfrs tfss tftc tftp toce toco toee toer toes toet toff tofo toft tofu toof toor toos toot top- tope topf topo topp tops topt topu torc tore torf toro torp torr tors tort toru tosc tose toso toss tost tosu totc tote toto totr tots tott toup tour tous tout tpcp tpcs tper tppp tppr tprs tpsc tpte tptp tptr tput trcc tre- trec tree tref treo tres tret treu trfc trfr troc troe troo trop tros trot trou trpc trpe trpp trps trst trtc trte trtr truc true trus trut truu tscc tscp tsec tses tset tsfc tsop tsos tsou tspo tsps tspt tsse tssf tssr tsst tstc tsts tsup ttcp tteo tter ttfc ttff ttoe ttop ttss tttt tucc tuco tuer tues tuet tufc tufe tuff tufo tuft tufu tuor tuos tupe tupo tups tupu turc ture turf turo turp turr turs turt turu tusc tuss tust tute tuto tuts tutt tutu tuuo u-rp uccp uces ucos ucrc ucsc ucsf ucst ucsu ucut uers uess ufcu ufer uffe ufos uftp uocc uofo uor- uore upcs upor upos uppc uppe uppp uppu upsc upse upto upup ure- ures uret urfe urff urft uro- uroo urpo urre urse urso urss ursu urte urts urup urur urus urut uscc usce uscf usco uscs usee usef user uses uset usfc usfs usoc usoe usos uspc uspo uspp usps ussc usse ussf ussr usss usst ussu ustc uste usto ustp usts usus utec utep uter utes utfo utor utsc utto uttu uucp uuoc uutf uuuu

-tree c-cor c-fos c-p-c c-pop c-tec ccccc ccett ccups ceco- cecos ceere ceese cefcu cefor ceoce ceoor ceose ceous cepes cepet cepos cepot ceppo cerc- cerce cerco cercs cerec cerer ceres ceret cerfs cero- ceroc ceros cerou cerps cerre cerro cerrs cerse cerss certe certs cerus cesce cescr cesse ceste cests cetes ceto- cette cetus cfour cfu-e co-co co-op cocc- cocce cocco coceo cocos cocto cocur cocus coepe coers coest coete coeur coeus cofer coffe coffs cofre cofur cooee cooer coofs coope coops coopt coore coors coost coote coots copce copec coper copes copos coppe coppo copps copr- copre copro copse copte copto copts copur copus coput corce core- coree corer cores coreu corfe corfo corfu coro- corop corot corpe corps corre corrs corse corso corss corsu corte corto corts corus cosco cosec coser coses coset cosse cost- coste costo costs coter cotes cotos cotso cott- cotte cotto cotts cottu couco couer coupe coups coure cours court couru couse coust couto couts coutu cpcfc cpctc cpesc crece creep creer crees creft creo- creop creos creot crepe crept crepu cresc crese creso cress crest crete cretu creu- creue creup croce croco crocs croes croft crooe croop croos croot cropc crope cropo crops crore crose cross crost crote crots crott croup crous crout crres cruce cruet crufe cruft cruor crupe crure cruse crust cruts csere cspot cspro csprs cstcc cteep ctree cttee cuero cuers cueto cueup cufeu cuffe cuffs cufre cuoco cuore cuper cupes cupof cupr- cupro curce curer cures curet curre curro currs curse curst curto curts curup cusco cusec cuser cusop cusps cusse cusso custe cutco cutcu cutee cuter cutes cutro cutto cutts cutup e-cps e-pro eccup ecoff ecorp ecots ecrus ecser ecspp ectfe ecto- ector ectot ecups eeeee eepee eeros eesof ef-ts ef-tu efere efetf effer effet effts efore efter efuru efuse efutu eofor eorre eoste epcos epcot epees eperc epeus epops epopt epost epote eppes eptfe epure erecs erect erept erere erest erets eroes eroor eroos erore erose eross eroto erres error errtu erses erste ersts erte erter ertes eruct erupt eruts esces escos escot escou escrt esect esere esoft esops esp-r espec esper espoo espot espre esref esser esses essor essse essue estce estee estep ester estes estet estoc estop estos estre estro estur estus esure etest etete etops etoro etour etree etres etter ettes eturu eucre euops euro- europ euros eurre eurus euser fcsts feces feeor feere feers feese feets fefor feoff ferce feres feret ferr- ferre ferro ferse ferte ferus fesco feser fesse fesso fest- feste festo fests festu feter fetes feto- fetor fette fetus feuer feurs feute focer focus fofos foore foose foote foots fopos force fore- foreo fores foret foros forro forse forso forss forst forte forto forts forur forus fosco fosse fotos fotte fotur fotus fouee fouet foupe foure fouro fours fouse foust fouts fprot frcpc frcsc freep freer frees freet frere frese fress frest frets frett freur froes froop froot frore frose frost frote frots froup fruct frust frute fruto fspot fstop ftest ftpfs ftrtt fu-fu fuco- fucus fuero fuest fuffs fuoco furo- furor furps furrs furse furst furus fusco fusee fuser fuses fuso- fusoe fusor fusse fuste fusts fusus futop futsu futur fuuse o-fer occur