-ous bbbb bbbs bmts bmus bobb bobo bobs bobu boko boks boku bomb boms bomt bomu boob book boom boor boos boot bor- bork borm boro borr bors bort boru bosk bosm boso boss bost bosu botb boto bots bott bouk boum bour bous bout brkb brob brok brom broo bror bros brot brou brrm brrr brrs brsb brsr brst brum brus brut bskt bsms bsmt bsos bsrm bssm bsts btob btor btrt btss bttb btus bubb bubo bubs bubu bukk buko buku bum- bumb bums bur- burb burk burm buro burr burs burt buru busk buss bust busu but- buto buts butt buus k-os kbbb kbbk kbbm kbbo kbbr kbbs kbbt kbbu kbkb kbkk kbko kbkr kbmb kbmo kbmr kbms kbmt kbob kbok kboo kbos kbot kbrb kbrk kbro kbrt kbru kbsb kbsk kbsm kbso kbsr kbss kbst kbsu kbtb kbtk kbtm kbto kbtr kbts kbtt kbub kbuk kbur kbus kbut kbuu kkbb kkbo kkbr kkbs kkbt kkkk kkmk kkmo kkmr kkms kkmt kkob kkoo kkor kkot kkrb kkrk kkro kkrr kkrs kkrt kksm kksr kkss kkst kksu kktk kkts kktu kkus kkut kkuu kmbr kmbs kmkk kmko kmks kmkt kmmk kmmm kmmo kmmr kmms kmmt kmob kmok kmom kmor kmot kmou kmrb kmro kmrr kmrs kmsb kmso kmsr kmss kmst kmsu kmtb kmtk kmtr kmts kmtt kmur kmus kobb kobk kobo kobr kobs kobu kokb kokk koko kokr koks koku komb komo komr koms komt koob kook kooo koor koos koot koou korb kork koro korr kors kort koru kos- kosb koso kosr koss kost kosu kotb kotk kotm koto kotr kots kott kotu koub koum kour kous kout kouu krbb krbk krbm krbr krbt krkk krko krkr krks krku krmb krmo krmr krms krmt krob krok krom kroo kror kros krrb krrk krrm krro krrr krrs krrt krsk krsr krss krst krsu krtk krtm krto krtr krts kruk krum krur ksbr ksbs kskb kskk ksko kskr ksks ksku ksmb ksmm ksmo ksmr ksms ksmt ksmu ksob ksok ksom ksoo ksor ksos ksou ksrb ksrm ksro ksrr ksrs ksrt kssm ksso kssr ksss ksst kssu kstb kstk kstm ksto kstr ksts kstt kstu ksub ksum ksut ksuu ktbb ktbr ktbt ktbu ktkb ktkk ktko ktkr ktks ktkt ktku ktmb ktmk ktmm ktmo ktmr ktms ktmt ktmu ktob ktok ktoo ktor ktot ktrb ktrk ktrm ktro ktrr ktrs ktrt ktru ktsm ktso ktsr ktst ktsu kttk ktto kttr ktts kttt kttu ktub ktum kubb kubo kubr kubs kubu kukk kuks kuku kumm kumo kumr kumt kumu kuok kuoo kuos kurb kurk kurm kuro kurr kurs kurt kuru kusb kuso kust kusu kuto kutr kuts kutt kutu kuub kuuk kuur kuuu mbbs mbms mbou mbrs mbus mkks mksm mkto mkts mmmm mmms mmor mmst mmsu mmts mmus mobb mobo mobs moko momo moms momu moob mook moor moos moot morb mork moro mors mort moru mosk moso moss most mosu motb motm moto mots mott motu mouk mour mous mout mrbb mrbm mrbs mrkr mrtm mrts mrtt mruk msmb msmm msms msmu msor msrb msrt mssm mssr msst mstr msts msus mtbo mtbs mtom mtor mtrr mtss mtst mttr mtts mubo mubs muko mumm mumo mums mumu muos murk muro murr murs murt muru musk muso muss must musu muto muts mutt mutu muut obbo obkb obok obor obos obot obro obsr obss obst obts obus okko okmo okok okom okor okot okro okso okto okur okus ombo ombu omo- omoo omor omro omsk omuo omus ooku ooms oooo ooos oort oost ootb oots oous orbb orbo orbs orbu orko ormo oro- orok orom oror oros orot orro orrs orsk orso orsu orto orts orub orum orus osku osm- osmo osoo osor osos osro ossb osso ossu ostr osts osum otbs oto- otok otoo otor otos otro otrs otso otsu otto otts ottu otur otus oubs our- ouro ours ourt oust out- outb outo outs ouu- rbbb rbbr rbbs rbmk rbms rbss rbst rkos rkss rkts rmbs rmst rmtu rob- robb robo robs robt robu rokk roko rokr roks roku romb romk romm romo roms roob rook room roor roos root rork roro rort roru roso ross rost rotk roto rotr rots rott roub rouk roum rous rout rrkm rrrr rrum rsos rsts rstu rsum rtms rtss rtts rubb rubs rubu rukk ruku rumb rumm rumo rums rumt ruok ruro rurs ruru rusk ruso russ rust rusu ruto ruts rutt rutu s-os sbbs sbor sbot sbrk sbst sbtk sbus skor skot skrt skss skum skur skut smkb smok smos smot smrk smrt smss smtu smur smus smut sobo sobr sobs sobt sobu sokk soko soku somb somm somo sook soom soor soos soot sorb sorm soro sorr sors sort soru soso soss sost sotk sotm soto sots sotu souk soum sour sous sout sros srtr srub ssbr ssot ssrm ssrs sssb sssm ssss sstb ssts stbs stks stms stmt stob stok stom stoo stor stos stot stou strk stro strs stru stsm stss sttr stub stuk stum stur stus stut sub- subb subm subo subs suks suku sum- sumo sums sumu suor suos sur- suro surr surs surt suru sus- susk suso suss sust susu suto sutu suum suus t-mo tbbs tbrb tbst tkos tkts tmbr tmmk tmos tmou tmro tmtt tobo tobs tobt tobu toko toku tomb tomm tomo toms tomt took toom toor toos toot tork torm toro torr tors tort toru tosb tosk toso toss tost tosu totm toto totr tots tott touk toum tour tous tout trmb trmk trms trmu trom troo tros trot trou trst trtr trub truk trus trut truu tsks tsob tsom tsos tsou tssm tssr tsst tstm tsts tsum ttbb ttms ttss tttt tubb tubo tubr tubs tubu tuko tuks tumb tums tumu tuor tuos turb turk turm turo turr turs turt turu tusk tusm tuss tust tuto tuts tutt tutu tuum tuuo ubbo ubos ukko ukok ukum ukur umb- umbo ummo umms umok umor umsu umts umus umut uomo uor- urbs uro- urok urom uroo urso urss ursu urts uruk urum