-hou -ous bbbb bbbs bbhs bhhs bhir bhit bhoi bhor bhot bhrt bhur bhut bhuu bibb bibi bibo bibs bihi bihs bihu biis bio- bioi bios biot biou birb biri biro birr birs birt biru bis- bish biso biss bist bisu bith bito bits bitt bitu bitz bizu bizz bobb bobi bobo bobs bobu boho bohr bohs boht bohu boi- boii bois boit boiu boob booh boor boos boot booz bor- borh bori boro borr bors bort boru borz bosh bosi boso boss bost bosu botb both boti boto bots bott bouh bour bous bout bozi bozo brhs brih brio bris brit briz brob broh broo bror bros brot brou broz brrr brrs brsb brsr brst bruh brus brut bruz bshs bsos bsts bths btob btor btrt btss bttb btus bubb bubi bubo bubs bubu buhi buho buhr buhs buir buis buit buiu bur- burb burh buri buro burr burs burt buru burz bush busi buss bust busu but- buti buto buts butt butz buus buuz buzi buzz bzou bzzt bzzz h-ii hbbs hbhs hbio hbit hbos hbrs hbss hbtu hhhh hhhs hhus hibi hibt hibu hihi hiho hiht hiis hiit hiiu hiob hiri hiro hirs hirt hiru hisb hish hiss hist hiti hito hits hitt hitz hizz hobo hobs hoho hoir hois hoit hoor hoos hoot hori horo horr hors hort hosh hoss host hotb hoth hoti hoto hotr hots hott hotu hotz hour hout hozo hrhs hrib hrit hrob hros hrso hrtb hshs hsob hsts hstz hsur hths htoh httr hubb hubi hubo hubs huhi huhs huhu huib huir huis huit huor huos huot huri huro hurr hurs hurt huru hurz hush husi huso huss hust huth huti huto huts hutt hutu hutz huub huus huzi huzz ibis ibos ibot ibri ibro ibss ibtb ibts ibus ihis ihit ihob ihss ihub ihuo iiht iiii iiio iiis iiit iioi iioo iios iirs iisi iisr iist iisu iitr iitt iobi ioii ioio ioit iooi iooo ioos iori iors ioso iosu ioto ious irhs iri- irio iris irob iroh irri irrs irti irts irus isbt ishi ishr ishs isis isit iso- isor isos isri issh issi isso issr isss issu isth isti isto istr ists isuh isus itbs iths itis itoh itoi itoo itor itos itou itri itrs itsi itso itsu itto itur iuiu iuss iust izso izzo obbo obhs obis obit oboi obor obos obot obrh obri obro obsr obss obst obts obuh obus ohhi ohho ohhs ohio ohis ohob ohoh ohos ohso ohss ohto ohtu ohus oiii oios oirt oist oisu oiti oitz oobi ooho oohs oooh oooo ooos oort oosi oost ootb oots oous oozi orbb orbi orbo orbs orbu orhs ori- orio oris orit oro- oror oros orot oroz orri orro orrs orsi orso orsu orth orto orts orub orus orzo orzu oshi osho oshs oshu osii osis osoi osoo osor osos osro ossb ossi osso ossu osti ostr osts otbs otho othr oths otis otit oto- otoh otoo otor otos otro otrs otso otsu otti otto otts ottu otur otus otzi oubs ouii ouir ouis ouit our- ouro ours ourt oust out- outb outh outi outo outs ouu- ouzo rbbb rbbr rbbs rbhs rbis rboh rbss rbst rhhs rhib rhio rhiz rhob rhoh rhos rhus rib- ribo ribs ribu riho rihs riht riis rios riot riou rioz riri rirs rish risi riso riss rist risu rith riti rito rits ritt ritu ritz rius rizi rizu rizz rob- robb robi robo robs robt robu rohr rohs rohu roio roir rois roit roiu roiz roob rooi roor roos root rooz rori roro rort roru rosh rosi roso ross rost roth roti roto rotr rots rott roub rouh rous rout rouz rozi rozz rrhs rrrr rsbi rshs rsis rsos rsts rstu rths rtss rtts rubb rubi rubs rubu ruhh ruhi ruhr ruhs ruis ruit ruiz ruri ruro rurs ruru rush rusi ruso russ rust rusu ruth ruti ruto ruts rutt rutu ruzi s-ib s-ii s-os sbbs sbhs sbor sbot sbsi sbst sbus shbs shbt shhh shhs shib shih shii shio shir shis shit shiu shiz shoo shor shos shot shou shri shrs shts shub shui shur shus shut shuu sibi sibo sibs sibu sihi sihr sihs siht sihu siit sior sios siot siou siri siro sirr sirs sirt siru sish sisi siss sist sisu sit- sith siti sito sits sitt situ sitz siui sius siut sizz sobo sobr sobs sobt sobu sohh soho sohs sohu soir sois soit soor soos soot sorb sorh sori soro sorr sors sort soru sosh sosi soso soss sost soth soto sots sotu sour sous sout soz- sozh sozi srhs srib sris sros srtr srub srzu ssbr sshs ssis ssit ssot ssri ssrs sssb sssh sssi ssss sstb ssth ssts stbs sths stib stih stio stir stis stit stob stoo stor stos stot stou stri stro strs stru stsi stss sttr stub stur stus stut sub- subb subh subi subo subs subz suhb suhi suho suhr suio suir suis suit suoh suor suos sur- suri suro surr surs surt suru sus- susi suso suss sust susu susz suti suto sutu suus suzi suzo suzu suzz szis szob szot szss szur tbbs tbhs tbit tbrb tbst thbs thi- thio thir this thoo thor thos thot thou thri thro thru thsr thss thtb thtr thts thur thus tibi tibs tibu tiht tihu tiit tiiu tios tiou tirb tiri tiro tirr tirs tiru tisb tish tisi tiso tiss tist tith titi tito tits titt titu titz tizi tizz tobi tobo tobs tobt tobu tohi toho tohu tois toit tooh toor toos toot tori toro torr tors tort toru tosb tosh tosi toso toss tost tosu toth toti toto totr tots tott touh toui tour tous tout tozo trhs tri- trib trio tris trit triz troi troo tros trot trou trsi trst trtr trub trus trut truu tshb tshi tshs tsis tsob tsoi tsos tsou tssi tssr tsst tsts tsui ttbb ttss tttt tubb tubo tubr tubs tubu tuhs tuht tuhu tuis tuit tuiu tuor tuos turb turi