-ous cccc cccf ccci cccs cccu ccfc ccff ccfi ccic ccii ccir ccis ccoc ccrc ccrf ccri ccrs ccrt ccsf ccsi ccss ccst cctc cctt ccuc ccus ccut cfcf cfco cfcs cffr cfit cfor cfos cfrt cfsi cftc cftr cicc cici cico cicr cics cict cicu ciff cifs ciii ciis ciit cior cios circ ciri ciro cirr cirs cirt cis- cisc cisr ciss cist citf citi cito cits citt citu ciuc cius coco coct cocu cofc coff cofi cofs coft coif coir cois coit coof coos coot cor- corc corf cori coro corr cors cort cosc cosi coso coss cost cotc coti coto cots cott cotu cour cous cout crcc crcr crfc crfs cric crif cris crit criu croc croo cror crot crrt crss crst crtc crtf crts crus crut cscc cscf csci csco cscr cscs csfc csfr csio csir csis csit csor csos csot csrc csrs cssr cstc csto cstr csts csuf csur csus ctcf ctfc ctfo ctfs ctic ctor ctos ctot ctrc ctrs ctsc ctss ctsu ctts cucc cuci cufc cuff cufi cufo cui- cuif cuir cuis cuit curf curi curo curr curs curt cuso cuss cust cusu cut- cutc cuto cuts cutt fccf fcic fcii fcot fcsc fcst fcto ffcc ffff ffii ffrr ffss fftf ficc fico fics fict fifc fiff fifi fifo fift fiii fior fios firs fisc fisi fiss fist fisu fitc fiti fits fitt foci foco focs fofo fois foof foos foot for- fori foro forr fors fort fosi foso foss fost foti foto fots fott four fous fout frcc frfc fric frio fris frit fros frot frou frsc frso frst fscc fsfi fsfo fssc fssf ft-c ftfc ftii ftos ftrs ftsr ftuc fuc- fuci fuct fufc fuff fufu fuir fuit fuor fur- furi furo furr furs furt fusc fusi fuso fuss fust fusu futi futo futs futu iccc iccf icci icco iccr iccs icct iccu icis icoc icor icos icrc icrf icrr icrs icrt icru icsc icsi icsr icss icst icts icus ifco ific ifis ifit ifor ifrf ifri ifsc ifso ifto iiii iiio iiis iiit iioi iioo iios iirc iirs iisc iisi iisr iist iisu iitr iitt iiuc ioci iofc ioii ioio ioit ioof iooi iooo ioos iori iors ioso iosu iotf ioto ious ircc ircs ircu irfu iri- iric irio iris iroc irrc irri irrs irsf irtf irti irts irus iscc isci isco iscr iscs isct iscu isfc isic isis isit iso- isoc isof isor isos isri issc issf issi isso issr isss issu istc isti isto istr ists isus itcs itic itif itis itof itoi itoo itor itos itou itrf itri itrs itsf itsi itso itsu ittf itto itur iucc iuiu iuss iust occc occi occt ocis ocos ocro ocrr ocrs oct- octi octo octs ocur ofcr off- offc offo offr offs offu ofit ofor ofst ofus oici oiii oios oirt oisc oist oisu oitc oiti oocr ooff oofs oooo ooos oort oosi oost oots oous orci orco orcs orff orfi orfs orfu ori- oric orif orio oris orit oro- orof oror oros orot orri orro orrs orsi orso orsu ortc orto orts orus oscc osci osco osii osis osoi osoo osor osos osro ossi osso ossu ostc osti ostr osts otfc otic otif otis otit oto- otof otoo otor otos otro otrs otso otsu otti otto otts ottu otur otus oucc oufc ouff ouii ouir ouis ouit our- ouro ours ourt oust out- outi outo outs ouu- rccc rccs rcfc rcic rcis rcos rcsc rcsi rcss rctc rcti rcts rffc rfic rftc ricc rico rics rict riff rifs rift rifu riif riis rios riot riou riri rirs risc risi riso riss rist risu riti rito rits ritt ritu rius rocc roco rocs rofc roff rofo roif roio roir rois roit roiu roof rooi roor roos root rorc rori roro rort roru rosc rosi roso ross rost rotc roti roto rotr rots rott rouf rous rout rrfc rrif rrrr rscc rscs rsfc rsis rsos rsts rstu rtcc rtfc rtss rtts ruci ruct rufc ruff rufo ruft ruif ruis ruit rurc ruri ruro rurs ruru rusi ruso russ rust rusu ruti ruto ruts rutt rutu s-ic s-ii s-os sccc sccs scct scfc scfi sci- scic scif scio scir scis scit scoo scor scot scr- scrc scri scrs scsc scsi scso scsr scst scsu sctc scto sctr scts scur scut sfcc sfco sfcs sffc sfio sfor sfos sfrc sfro sfss sfsu sfts sicc sici sico sics sicu siff sifo sifr sift sifu siit sior sios siot siou sirc sirf siri siro sirr sirs sirt siru sisc sisi siss sist sisu sit- sitc siti sito sits sitt situ siui sius siut soci soco socr socs sofi sofo soft soic soif soir sois soit soof soor soos soot sori soro sorr sors sort soru sosi soso soss sost sotc soto sots sotu souf sour sous sout srcc srct srfc srfi sris sros srtr sscc ssci sscs ssfc ssis ssit ssoc ssot ssrc ssri ssrs sssc sssf sssi ssss sstc ssts stcc stcs stcu stfc stfu stic stif stio stir stis stit stof stoo stor stos stot stou strc stri stro strs stru stsf stsi stss sttc sttr stuc stuf stur stus stut suc- succ suci sucr sucs suf- sufc suff sufi sufr sufs sufu suio suir suis suit suor suos sur- surc surf suri suro surr surs surt suru sus- susi suso suss sust susu suti suto sutu suus tccc tccu tcfc tcos tctc tcts tfcu tfot tfrs tfsi tfss tftc ticc tico tics tiff tifo tift tiit tiiu tios tiou tiri tiro tirr tirs tiru tisi tiso tiss tist titc titi tito tits titt titu toci toco toff tofi tofo toft tofu tois toit toof toor toos toot torc torf tori toro torr tors tort toru tosc tosi toso toss tost tosu totc toti toto totr tots tott toui tour tous tout trcc trfc trfr tri- tric trif trio tris trit troc troi troo tros trot trou trsi trst trtc trtr truc trus trut truu tscc tsfc tsis tsoi tsos tsou tssf tssi