-ous cccc cccf cccs cccu ccfc ccff ccoc ccrc ccrf ccrs ccsf ccss ccuc ccus cfcf cfco cfcs cffr cfor cfos coco cocu cofc coff cofs coof coos cor- corc corf coro corr cors cosc coso coss cour cous crcc crcr crfc crfs croc croo cror crss crus cscc cscf csco cscr cscs csfc csfr csor csos csrc csrs cssr csuf csur csus cucc cufc cuff cufo curf curo curr curs cuso cuss cusu fccf fcsc ffcc ffff ffrr ffss foco focs fofo foof foos for- foro forr fors foso foss four fous frcc frfc fros frou frsc frso fscc fsfo fssc fssf fuc- fufc fuff fufu fuor fur- furo furr furs fusc fuso fuss fusu occc ocos ocro ocrr ocrs ocur ofcr off- offc offo offr offs offu ofor ofus oocr ooff oofs oooo ooos oous orco orcs orff orfs orfu oro- orof oror oros orro orrs orso orsu orus oscc osco osoo osor osos osro osso ossu oucc oufc ouff our- ouro ours ouu- rccc rccs rcfc rcos rcsc rcss rffc rocc roco rocs rofc roff rofo roof roor roos rorc roro roru rosc roso ross rouf rous rrfc rrrr rscc rscs rsfc rsos rufc ruff rufo rurc ruro rurs ruru ruso russ rusu s-os sccc sccs scfc scoo scor scr- scrc scrs scsc scso scsr scsu scur sfcc sfco sfcs sffc sfor sfos sfrc sfro sfss sfsu soco socr socs sofo soof soor soos soro sorr sors soru soso soss souf sour sous srcc srfc sros sscc sscs ssfc ssoc ssrc ssrs sssc sssf ssss suc- succ sucr sucs suf- sufc suff sufr sufs sufu suor suos sur- surc surf suro surr surs suru sus- suso suss susu suus ucos ucrc ucsc ucsf ucsu ufcu ufos uocc uofo uor- urff uro- uroo urso urss ursu urur urus uscc uscf usco uscs usfc usfs usoc usos ussc ussf ussr usss ussu usus uuoc uuuu