-ous cccc cccf cccs cccu ccfc ccff ccnc ccnf ccnr ccns ccnu ccoc ccrc ccrf ccrs ccsf ccsn ccss ccuc ccus cfcf cfcn cfco cfcs cffr cfnr cfns cfor cfos cfrn cfun ckck ckco ckcs ckfr cknc ckns ckoc ckoo ckor ckos ckrc ckso cnco cnrc cnrr cnss cock coco cocu cofc coff cofs cok- coko con- conc conf conk conn cono cons coof cook coon coos cor- corc corf cork corn coro corr cors cosc coso coss couk coun cour cous crcc crcr crfc crfs crkc crns croc crok cron croo cror crss cruk crun crus cscc cscf csco cscr cscs csfc csfr csks csor csos csrc csrs cssr csuf csur csus cucc cuck cucn cufc cuff cufo cuk- cuno cuon curf curn curo curr curs cusk cuso cuss cusu f--k fccf fcsc fcuk ffcc ffff ffrr ffss ffun fnrs fnuf fock foco focs fofo fono fons foof fook foon foos for- fork forn foro forr fors foso foss foun four fous frcc frcn frfc frns fron fros frou frsc frso frun fscc fsck fsfo fssc fssf fuc- fuck fufc fuff fufu fukk fuko fuku funf funk funs fuor fur- furn furo furr furs fusc fusk fuso fuss fusu k-os kccc kcck kccr kccu kcfc kcfn kcfo kckc kckf kckk kckn kcko kckr kcno kcnr kcns kcof kcon kcor kcos kcou kcrc kcrn kcro kcrr kcrs kcru kcsc kcsf kcsn kcsr kcss kcsu kcuf kcuk kfcf kfco kfcr kfcs kfff kffk kffn kfnc kfnf kfnk kfnn kfno kfns kfok kfon kfoo kfor kfrc kfrn kfro kfrr kfrs kfru kfsk kfsr kfun kfuo kkck kkcn kkco kkcr kkcs kkfn kkfr kkfs kkkk kknn kkno kkns kknu kkon kkoo kkor kkrc kkrf kkrk kkrn kkro kkrr kkrs kksf kksn kksr kkss kksu kkus kkuu knck kncn knco kncr kncu knfo knfr knkk knnk knnr knns knoc knok knon knor knou knrk knro knrs knsc knsk knsn knso knsr knss knsu knuk knur knus kocf kock kocn kocs kofc koff kofk kofo kofu kokc kokf kokk kokn koko kokr koks koku konc konk kono kooc kook koon kooo koor koos koou korc korf kork korn koro korr kors koru kos- kosc kosf koso kosr koss kosu kour kous kouu krcc krcn krco krcs krcu krfc krff krfn krfo krfs krkc krkk krkn krko krkr krks krku krnk krnn krno krnu kroc krof krok kroo kror kros krrc krrf krrk krrn krro krrr krrs krsc krsf krsk krsn krsr krss krsu kruc kruf kruk krun krur ksck kscn ksco kscr kscs kscu ksfc ksfn ksfo ksfr kskf kskk kskn ksko kskr ksks ksku ksnc ksnf ksnk ksnn ksnr ksns ksoc ksof ksok kson ksoo ksor ksos ksou ksrf ksrn ksro ksrr ksrs kssn ksso kssr ksss kssu ksun ksuu kucc kuco kucr kufc kuff kufn kufo kufr kukk kukn kuks kuku kunc kunk kuno kunr kuns kunu kuok kuon kuoo kuos kurk kuro kurr kurs kuru kusc kusf kusn kuso kusu kuuk kuur kuuu nccc nccf nccn nccr nccs nccu ncfc ncnc ncoc ncor ncos ncrc ncsc ncsf ncss ncuk nfcu nfff nfon nfrs nfsr nfsu nkfc nkok nkor nkrf nnnn nnos nnss nock noco nocs noko non- nonn nono nons nonu noo- nook noon nooo noor noos nor- norc norf nork norn noro norr nors nos- nosk noss nosu noun nour nous nrcs nrfc nroc nron nrrc nrsc nscc nscs nsfc nsfk nsfs nskk nsnr nsof nsok nsos nsou nsrc nssc nssf nsso nssr nsss nuck nucs nucu nuff nuku nunc nunk nunn nuno nuns nuoc nuon nurc nurn nurr nurs nuru nuss nusu nuuk occc occn ocks ocon ocos ocro ocrr ocrs ocur ofcr off- offc offo offr offs offu ofno ofor ofus okcu okko okno okok okon okor okro okso okun okur okus onc- oncf onco onno onon onor onos onsc onso onur onus oocr ooff oofs ooku oons oooo ooos oous orco orcs orff orfs orfu orko ornc orno orns oro- orof orok oron oror oros orro orrs orsk orso orsu orus oscc osco osku osno osnr osoo osor osos osro osso ossu osun oucc oufc ouff oun- our- ourn ouro ours ouu- rccc rccs rcfc rcnr rcon rcos rcsc rcss rffc rkkf rkos rkss rnco rncs rocc rock roco rocs rofc roff rofo rokk roko rokr roks roku ronc ronk rono rons roof rook roon roor roos rorc rork roro roru rosc roso ross rouf rouk roun rous rrfc rrrr rrun rscc rscn rscs rsfc rsnn rsno rsnr rsos ruck rufc ruff rufo rukk rukn ruku runc runf runk runn runo runs ruok rurc ruro rurs ruru rusk ruso russ rusu ruun s-os sccc sccs scfc sck- scnr scok scon scoo scor scr- scrc scrn scrs scsc scsn scso scsr scsu scun scur sfcc sfco sfcs sffc sfor sfos sfrc sfro sfss sfsu skfc skn- skon skor skss skun skur sncc sncf snco snfu snns snoc snoo snor snos snrk snrs snur snus sock soco socr socs sofo sokk sokn soko soku son- sonk sono sons sonu soof sook soon soor soos sorn soro sorr sors soru soso soss souf souk soun sour sous srcc srfc srnn srno sros sscc sscs ssfc ssns ssoc ssrc ssrs sssc sssf ssss suc- succ suck sucr sucs suf- sufc suff sufr sufs sufu suks suku sun- sunk sunn suno suns sunu suor suos sur- surc surf surn suro surr surs suru sus- susk suso suss susu suus ucon ucos ucrc ucsc ucsf ucsu ufcu ufos ufuk ukcc ukko uknc ukok ukon ukrc uksc ukur uncc uncf unco uncs unkn unko unks unno unns unon unos unrf unro unrs uns- unsc unso unus uocc uofo uor- urff urns uro- urok uroo urso urss ursu uruk urun urur urus us-k uscc uscf usco uscs usfc usfs usnc usno usnr usnu usoc usos ussc ussf ussr usss ussu usun usus uuno uuoc uuuu