orum orus oshi osho oshs oshu osii osim osis osm- osmo osoi osoo osor osos osro ossb ossi osso ossu osti ostr osts osum otbs otho othr oths otif otis otit oto- otof otoh otoo otor otos otro otrs otso otsu otti otto otts ottu otur otus oubs ouff ouii ouir ouis ouit oumi our- ouro ours ourt oust out- outb outh outi outo outs ouu- rbbb rbbr rbbs rbhs rbis rbms rboh rbss rbst rfhs rhfs rhhs rhib rhim rhio rhob rhoh rhos rhsm rhum rhus rib- ribo ribs ribu riff rifs rift rifu riho rihs riht riif riis rimi rimm rimo rims rimu riom rios riot riou riri rirs rish risi rism riso riss rist risu rith riti rito rits ritt ritu rius rmbs rmhs rmif rmst rmtu rob- robb robi robo robs robt robu roff rofo rohm rohr rohs rohu roif roio roir rois roit roiu romb romi romm romo roms roob roof rooi room roor roos root rori roro rort roru rosh rosi roso ross rost roth roti roto rotr rots rott roub rouf rouh roum rous rout rrhs rrif rrrr rrum rsbi rshs rsis rsos rsts rstu rsum rtbf rtfb rtfm rths rtmi rtms rtss rtts rubb rubi rubs rubu ruff rufo ruft ruhh ruhi ruhm ruhr ruhs ruif ruis ruit rumb rumi rumm rumo rums rumt ruri ruro rurs ruru rush rusi ruso russ rust rusu ruth ruti ruto ruts rutt rutu s-ib s-ii s-os sbbs sbhs sbor sbot sbsi sbst sbus sfhs sfio sfmm sfor sfos sfro sfss sfsu sfts shbm shbs shbt shft shhh shhs shib shih shii shim shio shir shis shit shiu shm- shmo shof shom shoo shor shos shot shou shri shrs shts shub shuf shui shum shur shus shut shuu sibi sibo sibs sibu siff sifo sifr sift sifu sihi sihr sihs siht sihu siim siit simh simi simm simo sims simt sior sios siot siou sirf siri siro sirr sirs sirt siru sish sisi siss sist sisu sit- sith siti sito sits sitt situ siui sium sius siut smbf smbh smfh smhs smif smis smit smof smos smot smrf smrt smsh smss smth smti smtu smur smus smut sobo sobr sobs sobt sobu sofi sofo soft sohh sohm soho sohs sohu soif soim soir sois soit somb somi somm somo soof soom soor soos soot sorb sorh sori sorm soro sorr sors sort soru sosh sosi soso soss sost soth sotm soto sots sotu souf soum sour sous sout srfi srhs srib srim sris sros srtr srub ssbr sshs ssis ssit ssot ssri ssrm ssrs sssb sssf sssh sssi sssm ssss sstb ssth ssts stbs stfu sths stib stif stih stim stio stir stis stit stms stmt stob stof stom stoo stor stos stot stou stri stro strs stru stsf stsi stsm stss sttr stub stuf stum stur stus stut sub- subb subh subi subm subo subs suf- suff sufi sufr sufs sufu suhb suhi suho suhr suio suir suis suit sum- sumi sumo sums sumu suoh suor suos sur- surf suri suro surr surs surt suru sus- susi suso suss sust susu suti suto sutu suum suus t-mo tbbs tbhs tbit tbrb tbst tfot tfrs tfsi tfss thbs thi- thif thim thio thir this thmb thms thmt thof thom thoo thor thos thot thou thri thro thru thsr thss thtb thtr thts thum thur thus tibi tibs tibu tiff tifo tift tiht tihu tiit tiiu timi timm timo tims timu tios tiou tirb tiri tiro tirr tirs tiru tisb tish tisi tism tiso tiss tist tith titi tito tits titt titu tium tmbr tmhs tmos tmou tmro tmsi tmtt tobi tobo tobs tobt tobu toff tofi tofo toft tofu tohi toho tohu tois toit tomb tomi tomm tomo toms tomt toof tooh toom toor toos toot torf tori torm toro torr tors tort toru tosb tosh tosi toso toss tost tosu toth toti totm toto totr tots tott touh toui toum tour tous tout trfm trfr trhs tri- trib trif trim trio tris trit trmb trmi trms trmu troi trom troo tros trot trou trsi trst trtr trub trus trut truu tsfm tshb tshi tshs tsis tsob tsoi tsom tsos tsou tssf tssi tssm tssr tsst tstm tsts tsui tsum ttbb ttff ttim ttms ttss tttt tubb tubo tubr tubs tubu tuff tufi tufm tufo tuft tufu tuhs tuht tuhu tuim tuis tuit tuiu tumb tumi tums tumu tuor tuos turb turf turi turm turo turr turs turt turu tush tusi tusm tuss tust tuti tuto tuts tutt tutu tuum tuuo ubbi ubbo ubii ubir ubis ubit ubos ubtf ufms ufos uhoh uhrs uhss uhti uhuh uims uirr uist uits umb- umbi umbo umff umhs umit ummo umms umor umri umsu umts umus umut uofm uofo uomo uor- urbi urbs urff urfi urft urho urib urif urim uris uriu urmi uro- urom uroo urrh urri ursi urso urss ursu urth urts urum urur urus urut usbr usbs usfi usfs ushi usho ushr ushs ushu usif usim usis usmm usms usoi usos ussb ussf ussr usss usst ussu ustb usti ustm usto usts usui usus utfo utis utmb utor utri utti utto uttu uuri uusi uutf uuuu

-form -itis bbuss bhooi bhoom bhoot bhour bhumi bibbo bibbs bibio bibis bibos bibri bibus biffi biffo biffs bifor bifus bihor bihou bimbo bioms bioss birmi biros birou birrs birst birth birts birum birur bisfi bishi bisht bishu bismo bisou bisto bitis bitit bitof bitru bitti bitto bitts bmfms bmiii bmrst bo-bo bo-ho bobbi bobos bobr bobri bobst bobts boffi boffo boffs bofhs bohor bohos bohot bohri bohrs bohus boios boiro boist boito bombo bombs bomis bomoh bomso boobs boofs booit boomb boomf booms boors boort booru boosh boost booth boots borbo borim borio boris bormo boro- borom boroo boros borot borou borro borsh borsi borst borsu borth borts borum borus borut boshi boshu bosio bosom bosor bossi bosso bosut botis botom botos botou botro botti botts bottu botus bouri bours boust bouth bouto bouts brifu brimm brimo brims briot