girr girs girt giss gist gito gits gnib gnin gnit gnof gnoo gnrr gnti gobi gobo gobs goff gofr gogi gogo gogs goif goin gois goit gon- gong goni gonn gono gons goof goog gooi goon goor goos goot gorb gorf gorg gori gorn goro gorr gors gort gosi goso goss gost goti goto gots gott grbr grib grif grig grin gris grit grni grob grof grog groi gron groo gror gros grot grrr grrs grss gsif gsis gson gsos gstr gtbr gtfo gtos i-go i-no ibfi ibis ibns ibon ibos ibot ibri ibro ibsf ibsn ibss ibtb ibts ifbb ifis ifit ifni ifno ifnr ifns ifor ifrb ifrf ifri ifsb ifso iftn ifto igbo iggs igis igni igno igns igon igoo igor igot igri igso iiii iiio iiis iiit iino iioi iioo iios iirs iisi iisr iist iitr iitt inbo infi info infs ingo ings inig inis init inni inno innr inns ino- inoi inon inor inos inot inri inro inrs inso inss inst intg inti intn into intr ints iobi iogt ioii ioio ioit ioni ionn iono ions ioof iooi iooo ioos iorg iori iors ioso iotf ioto irgs iri- irig irin irio iris irob iron irri irrs irsf irsg irtf irti irts isbn isbt isin isis isit isno isnt iso- isof ison isor isos isrg isri issf issi isso issr isss isti isto istr ists itbs itgo itgs itif itin itis itno itof itoi iton itoo itor itos itrf itri itrs itsf itsi itso ittf itto n-ii nbbo nbti nfff nfib nfon nfrs nfsr nfto ngfs ngio ngns ngon ngor ngos ngri ngsn ngtn ngts nibi nibo nibs niff nift nigg nigo nigs nigt niir niit ning nini nino nins niog nion nioo nios niro nirs nirt nisi niso niss nist nitb nitf niti nito nitr nits nngn nnit nnnn nnos nnot nnss nntn nobi nobo nobs nofi nogg nogo nogs nogt noib noif noin noio noir nois noit non- nong noni nonn nono nons nont noo- noob noon nooo noor noos noot nor- norb norf norg nori norn noro norr nors nort nos- noss nost not- noti noto nots nott nron nrts nsbo nsfs nsin nsis nsnr nsof nsos nssb nssf nsso nssr nsss nsts ntfs ntis ntof ntsb ntsf ntss ntto nttr obbo obin obis obit oboi obon obor obos obot obri obro obsn obsr obss obst obts off- offo offr offs ofgo ofit ofno ofor ofst ogb ogfr oggi ogin ogni ogog ogoi ogon ogri ogro ogsi oigo oiii oins oint oion oios oirt oist oiti ongi ongo onir onis onit onni onno onon onor onos onso onst ont- onti onto oobi ooff oofs oons oont oooo ooos oort oosi oost ootb oots orbb orbi orbo orbs orff orfi orfs orgn orgo orgs ori- orif orig orin orio oris orit orni orno orns oro- orof oron oror oros orot orri orro orrs orsi orso orto orts osgi osii osin osis osno osnr osoi osoo osor osos osro ossb ossi osso osti ostr osts otbs otif otin otis otit oto- otof otog oton otoo otor otos otro otrs otsg otso otti otto otts rbbb rbbr rbbs rbis rbss rbst rfgs rgbi rgit rgtr rgts rib- ribo ribs riff rifs rift rigg rigi rigo rigs riif riin riis rinf ring rinn rino rion rios riot riri rirs risi riso riss rist riti rito rits ritt rnbr rngs rnin rnnt rnot rob- robb robi robo robs robt roff rofo rogg rogi rogo roif roig roin roio roir rois roit rong roni rono rons ront roob roof roog rooi roon roor roos root rori roro rort rosi roso ross rost rotg roti rotn roto rotr rots rott rrif rrrr rsbi rsgb rsis rsnn rsno rsnr rsos rsts rtbf rtfb rtgs rtns rtss rtts s-ib s-ii s-os sbbs sbig sbor sbot sbsi sbst sbtn sfio sfnb sfnt sfog sfor sfos sfro sfss sfts sggg sggs sgio sgro sgss sgts sibi sibo sibs siff sifo sifr sift sigg sigi sign sigo sigs siit sing sini sinn sino sins sint sion sior sios siot sirf siri siro sirr sirs sirt sisi siss sist sit- siti sitn sito sits sitt snib snig snir snit snns snob snog snoo snor snos snot snrs sntr sobo sobr sobs sobt sofi sofo soft sogi sogn sogo sogs soif soin soir sois soit son- song soni sono sons sont soof soog soon soor soos soot sorb sorg sori sorn soro sorr sors sort sosi soso soss sost sotn soto sots srfi srgb srib sris srni srnn srno sros srtr ssbn ssbr ssgs ssgt ssin ssis ssit ssns ssot ssrg ssri ssrs sssb sssf sssi ssss sstb ssts stbs stfn stgr stib stif stig stio stir stis stit stng stnn stnr stns stob stof stog ston stoo stor stos stot stri strn stro strs stsf stsi stss sttr tbbs tbgs tbit tbnf tbrb tbst tfin tfot tfrs tfsi tfss tgif tgts tibi tibs tiff tifo tift tigi tigr tigs tiit ting tini tinn tino tins tint tion tios tirb tiri tiro tirr tirs tisb tisi tiso tiss tist titi tito tits titt tngs tnts tobi tobo tobs tobt toff tofi tofo toft togo togr togs togt tois toit tonb tong toni tonn tono tons toof toon toor toos toot torf torg tori torn toro torr tors tort tosb tosi toso toss tost toti toto totr tots tott trfr tri- trib trif trig trin trio tris trit trng trno trog troi tron troo tros trot trsi trst trtr tsgt tsig tsin tsis tsob tsoi tsos tssf tssg tssi tssr tsst tsts ttbb ttff ttfn tton ttss tttt

-itis bfrog bibbo bibbs bibin bibio bibis bibos bibri biffi biffo biffs bifor big-i biggs bigif bigig bigin bigon bigoo bigos bigot bigrs bingo bings binit binns binos binot bints biogs bions biont bioss birgi birin birni birns biron biros birrs birst birts bisfi bisin bison bisto bitgo bitis bitit bitof biton bitti bitto bitts bnito bo-bo bobbi bobin bobos bobr bobri bobst bobts boffi boffo boffs boggs bogno bogof bogon