chos chou chrb chrc chro chrr chrs chrt chsc chsh chsi chsr chst chto chtr chtt chub chui chur chus chut cibc cibi cibo cicc cich cici cico cicr cics cict cicu cihr cihs ciht ciii ciis ciit ciob cior cios cirb circ cirh ciri ciro cirr cirs cirt cis- cisc cish cisr ciss cist citb cith citi cito cits citt citu ciuc cius cobb cobh cobi cobo cobs cobu coch coco coct cocu coho cohs coir cois coit coob cooh coos coot cor- corb corc cori coro corr cors cort cosc cosh cosi coso coss cost cotb cotc coth coti coto cots cott cotu coub cour cous cout crbc crbu crcc crcr crhs crib cric cris crit criu crob croc croh croo cror crot crrt crss crst crtc crts crub crus crut cscb cscc csch csci csco cscr cscs cshs csib csio csir csis csit csob csor csos csot csrc csrs cssr cstc csto cstr csts csur csus ctbi ctbs cths ctic ctor ctos ctot ctrc ctrs ctsc ctss ctsu ctts cub- cubb cubi cubs cucc cuci cui- cuir cuis cuit curb curi curo curr curs curt cusb cush cuso cuss cust cusu cut- cutc cuth cuto cuts cutt h-ii hbbs hbhs hbic hbio hbit hboc hbos hbrs hbss hbtu hcbc hcbs hccb hccc hcch hccs hchi hchs hcis hcsc hcso hcss hcst hhhh hhhs hhus hi-c hibi hibt hibu hicc hich hico hics hihc hihi hiho hiht hiis hiit hiiu hiob hioc hiri hiro hirs hirt hiru hisb hish hiss hist hitc hiti hito hits hitt hobo hobs hoch hocr hocs hoho hoir hois hoit hoor hoos hoot horc hori horo horr hors hort hosh hoss host hotb hoth hoti hoto hotr hots hott hotu hour hout hrhs hrib hrit hrob hros hrrc hrso hrtb hsbc hscc hsci hsct hshs hsob hsts hsur htcc hths htoh htsc httr hubb hubi hubo hubs huch hucs hucu huhi huhs huhu huib huir huis huit huor huos huot huri huro hurr hurs hurt huru hush husi huso huss hust huth huti huto huts hutt hutu huub huus ibcs ibis ibos ibot ibrc ibri ibro ibss ibtb ibtc ibts ibus icbc icbs iccb iccc icci icco iccr iccs icct iccu ichc ichi icho ichr ichs ichu icis icoc icor icos icrc icrr icrs icrt icru icsb icsc icsh icsi icsr icss icst icts icub icus ihcc ihis ihit ihob ihrc ihss ihtc ihub ihuo iiht iiii iiio iiis iiit iioi iioo iios iirc iirs iisc iisi iisr iist iisu iitr iitt iiuc iobi ioci ioii ioio ioit iooi iooo ioos iori iors ioso iosu ioto ious ircc ircs ircu irhs iri- iric irio iris irob iroc iroh irrc irri irrs irti irts irus isbt iscc isch isci isco iscr iscs isct iscu ishi ishr ishs isic isis isit iso- isoc isor isos isri issc issh issi isso issr isss issu istc isth isti isto istr ists isuh isus itbs itch itcs ithc iths itic itis itoh itoi itoo itor itos itou itri itrs itsi itso itsu itto itur iucc iuiu iuss iust obbo obhs obis obit oboi obor obos obot obrh obri obro obsr obss obst obts obuh obus ocbc occc occi occt ochi ochs ocht ocis ocos ocro ocrr ocrs oct- octi octo octs ocur ohcc ohhi ohho ohhs ohio ohis ohob ohoh ohos ohso ohss ohto ohtu ohus oici oiii oios oirt oisc oist oisu oitc oiti oobi oocr ooho oohs oooh oooo ooos oort oosi oost ootb oots oous orbb orbi orbo orbs orbu orch orci orco orcs orhs ori- oric orio oris orit oro- oror oros orot orri orro orrs orsi orso orsu ortc orth orto orts orub orus oscc osci osco oshc oshi osho oshs oshu osii osis osoi osoo osor osos osro ossb ossi osso ossu ostc osti ostr osts otbs otho othr oths otic otis otit oto- otoh otoo otor otos otro otrs otso otsu otti otto otts ottu otur otus oubs oucc ouch ouii ouir ouis ouit our- ouro ours ourt oust out- outb outh outi outo outs ouu- rbbb rbbr rbbs rbhs rbis rboh rbss rbst rcbc rcbo rccb rccc rccs rchb rchs rcic rcis rcos rcsc rcsi rcss rctc rcti rcts rhhs rhib rhio rhob rhoc rhoh rhos rhus rib- ribo ribs ribu ricc rich rico rics rict riho rihs riht riis rios riot riou riri rirs risc rish risi riso riss rist risu rith riti rito rits ritt ritu rius rob- robb robi robo robs robt robu rocc roch roco rocs rohr rohs rohu roio roir rois roit roiu roob rooi roor roos root rorc rori roro rort roru rosc rosh rosi roso ross rost rotc roth roti roto rotr rots rott roub rouh rous rout rrhs rrrr rsbi rscc rsch rscs rshs rsis rsos rsts rstu rtcc rths rtss rtts rubb rubi rubs rubu ruch ruci ruct ruhh ruhi ruhr ruhs ruis ruit rurc ruri ruro rurs ruru rush rusi ruso russ rust rusu ruth ruti ruto ruts rutt rutu s-ib s-ic s-ii s-os sbbs sbcc sbcs sbct sbhc sbhs sbic sbor sbot sbsi sbst sbtc sbus scbi sccc sccs scct sch- schh schi scho schr schs sci- scic scio scir scis scit scob scoh scoo scor scot scr- scrc scri scrs scsc scsh scsi scso scsr scst scsu sctc scto sctr scts scub scur scut shbs shbt shcc shhh shhs shib shih shii shio shir shis shit shiu shoo shor shos shot shou shri shrs shsc shts shub shui shur shus shut shuu sibc sibi sibo sibs sibu sicc sich sici sico sics sicu sihi sihr sihs siht sihu siit sior sios siot siou sirc siri siro sirr sirs sirt siru sisc sish sisi siss sist sisu sit- sitc sith siti sito sits sitt situ siui sius siut sobo sobr sobs sobt sobu soch soci soco socr socs sohh soho sohs sohu soic soir sois soit soor soos soot sorb sorh sori soro sorr sors sort soru sosh sosi soso soss sost sotc soth soto sots sotu sour sous