-hou -ous bbbb bbbs bbch bbhs bbrc bcbc bcbs bccc bccs bchs bcor bcos bcrs bcru bcsc bcss bctc bcts bcuc bhcc bhhs bhor bhot bhrt bhur bhut bhuu bobb bobo bobs bobu boch boco bocs bocu boho bohr bohs boht bohu boob booc booh boor boos boot bor- borh boro borr bors bort boru bosc bosh boso boss bost bosu botb both boto bots bott bouh bour bous bout brcb brhs brob broc broh broo bror bros brot brou brrr brrs brsb brsr brst brtc bruc bruh brus brut bscs bshs bsos bssc bsts btcc btcs bths btob btor btrc btrt btss bttb btus bubb bubo bubs bubu bucc buch buco bucs bucu buho buhr buhs bur- burb burh buro burr burs burt buru busc bush buss bust busu but- buto buts butt buus c-bo cbbc cbbs cbcc cbcr cbcs cbct cbcu cbhs cbot cbrh cbrt cbsc cbtc cbus ccbc cccb cccc cccs cccu cchr cchs ccob ccoc ccrc ccrs ccrt ccss ccst cctb cctc cctt ccuc ccus ccut chch chcs chhs choc choh choo chor chos chou chrb chrc chro chrr chrs chrt chsc chsh chsr chst chto chtr chtt chub chur chus chut cobb cobh cobo cobs cobu coch coco coct cocu coho cohs coob cooh coos coot cor- corb corc coro corr cors cort cosc cosh coso coss cost cotb cotc coth coto cots cott cotu coub cour cous cout crbc crbu crcc crcr crhs crob croc croh croo cror crot crrt crss crst crtc crts crub crus crut cscb cscc csch csco cscr cscs cshs csob csor csos csot csrc csrs cssr cstc csto cstr csts csur csus ctbs cths ctor ctos ctot ctrc ctrs ctsc ctss ctsu ctts cub- cubb cubs cucc curb curo curr curs curt cusb cush cuso cuss cust cusu cut- cutc cuth cuto cuts cutt hbbs hbhs hboc hbos hbrs hbss hbtu hcbc hcbs hccb hccc hcch hccs hchs hcsc hcso hcss hcst hhhh hhhs hhus hobo hobs hoch hocr hocs hoho hoor hoos hoot horc horo horr hors hort hosh hoss host hotb hoth hoto hotr hots hott hotu hour hout hrhs hrob hros hrrc hrso hrtb hsbc hscc hsct hshs hsob hsts hsur htcc hths htoh htsc httr hubb hubo hubs huch hucs hucu huhs huhu huor huos huot huro hurr hurs hurt huru hush huso huss hust huth huto huts hutt hutu huub huus obbo obhs obor obos obot obrh obro obsr obss obst obts obuh obus ocbc occc occt ochs ocht ocos ocro ocrr ocrs oct- octo octs ocur ohcc ohho ohhs ohob ohoh ohos ohso ohss ohto ohtu ohus oocr ooho oohs oooh oooo ooos oort oost ootb oots oous orbb orbo orbs orbu orch orco orcs orhs oro- oror oros orot orro orrs orso orsu ortc orth orto orts orub orus oscc osco oshc osho oshs oshu osoo osor osos osro ossb osso ossu ostc ostr osts otbs otho othr oths oto- otoh otoo otor otos otro otrs otso otsu otto otts ottu otur otus oubs oucc ouch our- ouro ours ourt oust out- outb outh outo outs ouu- rbbb rbbr rbbs rbhs rboh rbss rbst rcbc rcbo rccb rccc rccs rchb rchs rcos rcsc rcss rctc rcts rhhs rhob rhoc rhoh rhos rhus rob- robb robo robs robt robu rocc roch roco rocs rohr rohs rohu roob roor roos root rorc roro rort roru rosc rosh roso ross rost rotc roth roto rotr rots rott roub rouh rous rout rrhs rrrr rscc rsch rscs rshs rsos rsts rstu rtcc rths rtss rtts rubb rubs rubu ruch ruct ruhh ruhr ruhs rurc ruro rurs ruru rush ruso russ rust rusu ruth ruto ruts rutt rutu s-os sbbs sbcc sbcs sbct sbhc sbhs sbor sbot sbst sbtc sbus sccc sccs scct sch- schh scho schr schs scob scoh scoo scor scot scr- scrc scrs scsc scsh scso scsr scst scsu sctc scto sctr scts scub scur scut shbs shbt shcc shhh shhs shoo shor shos shot shou shrs shsc shts shub shur shus shut shuu sobo sobr sobs sobt sobu soch soco socr socs sohh soho sohs sohu soor soos soot sorb sorh soro sorr sors sort soru sosh soso soss sost sotc soth soto sots sotu sour sous sout srbc srcc srch srct srhs sros srtr srub ssbr sscc sscs sshs ssoc ssot ssrc ssrs sssb sssc sssh ssss sstb sstc ssth ssts stbc stbs stcc stch stcs stcu sths stob stoo stor stos stot stou strc stro strs stru stss sttc sttr stub stuc stur stus stut sub- subb subh subo subs suc- succ such sucr sucs suhb suho suhr suoh suor suos sur- surc suro surr surs surt suru sus- suso suss sust susu suto sutu suus tbbs tbcb tbcc tbhs tbrb tbst tcbs tccc tccu tch- tchh tcho tchr tchs tchu tcos tcsh tctc tcts thbs thch thoo thor thos thot thou thro thru thsr thss thtb thtr thts thur thus tobo tobs tobt tobu toch toco toho tohu tooh toor toos toot torc toro torr tors tort toru tosb tosc tosh toso toss tost tosu totc toth toto totr tots tott touh tour tous tout trcc trhs troc troo tros trot trou trst trtc trtr trub truc trus trut truu tsbc tscc tshb tshs tsob tsos tsou tssr tsst tstc tsts ttbb ttss tttt tubb tubo tubr tubs tubu tucc tuch tuco tuhs tuht tuhu tuor tuos turb turc turo turr turs turt turu tusc tush tuss tust tuto tuts tutt tutu tuuo ubbo uboc ubos ucbc ucho uchs ucos ucrc ucsb ucsc ucst ucsu ucut uhoh uhrs uhss uhuh uocc uor- urbs urch urho uro- uroo urrh urso urss ursu urth urts urur urus urut usbc usbr usbs uscc usch usco uscs usho ushr ushs ushu usoc usos ussb ussc ussr usss usst ussu ustb ustc usto usts usus utor utsc utto uttu uuoc uuuu