-ing bbbb bbbs bbdd bbin bbng bbrg bd-r bdii bdin bdsd bggs bgst bibb bibi bibs bidi bidr bids bigb bigd bigg bign bigs bigt biin biis bin- bind bing bini binn bins bint birb bird birg biri birn birr birs birt bis- bisd biss bist bitd bits bitt bnib bnin bnrr bnss brds brdt brid brig brin bris brit brns brrr brrs brsb brsr brst bsbd bsgs bsin bsnd bsns bsrd bssd bsts btdt btrt btss bttb dbit dbrn dbrs dbss dbtt dddd ddss ddts dgsb dgsi dgsn dibb dibs didi dids digg digi digs diii diis din- ding dini dinn dins dint dird dirr dirs dirt dis- disd disg disi diss dist diti dits ditt dnis dntt drgs drib drin drit drrs dsdr dsgn dsng dsri dsrr dssi dssn dsst dstn dsts dtnb dtng dtss gbbs gddb gdrt ggbt gggg ggrn ggss gibb gibs gidd gidi gids gigg gigi gign gigs giis ging gini ginn gins gird girg giri girn girr girs girt gisd giss gist gits gnib gnin gnit gnrr gnti grbr grds grib grid grig grin gris grit grni grrr grrs grss gsds gsis gstr gtbr ibid ibis ibns ibrd ibri ibsn ibss ibtb ibts idid idig idin idir idis idss idts iggs igis igni igns igri iiii iiis iiit iirs iisd iisi iisr iist iitr iitt inbd ind- indi inds ings inid inig inis init inni innr inns inri inrs inss inst intd intg inti intn intr ints irds irgs iri- irid irig irin iris irri irrs irsg irti irts isbd isbn isbt isdb isdn isds isin isis isit isnt isrg isri issi issr isss istd isti istr ists itbs itgs itin itis itri itrs itsi n-ii nbti nddb ndnt ndri ndsi ndss ngns ngri ngsn ngtn ngts nibi nibs nidd nidi nids nigg nigs nigt niir niit nind ning nini nins nirs nirt nisd nisi niss nist nitb niti nitr nits nndb nngn nnit nnnn nnss nntn nrds nrrd nrts nsdg nsds nsdt nsin nsis nsnr nsrd nssb nssr nsss nstd nsts ntds ntis ntnd ntsb ntss nttr rbbb rbbr rbbs rbds rbis rbsd rbss rbst rdgs rgbi rgds rgit rgtr rgts rib- ribs ridd ridi rids rigg rigi rigs riin riis rind ring rinn riri rirs risd risi riss rist riti rits ritt rnbr rnds rngs rnin rnnt rntd rrrr rsbi rsdd rsdg rsds rsgb rsid rsis rsnn rsnr rsts rtdt rtgs rtnd rtns rtss rtts s-ib s-ii sbbs sbds sbig sbsd sbsi sbst sbtn sdds sdgs sdib sdrs sdss sggg sggs sgsd sgss sgts sibi sibs sidd sidi sidr sids sigd sigg sigi sign sigs siit sind sing sini sinn sins sint siri sirr sirs sirt sisd sisi siss sist sit- sitd siti sitn sits sitt snib snid snig snir snit snns snrs snsd sntr srgb srib sris srni srnn srsd srtr ssbn ssbr ssdd ssgs ssgt ssid ssin ssis ssit ssns ssrg ssri ssrs sssb sssi ssss sstb sstd ssts stbd stbs stds stgr stib stid stig stir stis stit stnd stng stnn stnr stns strd stri strn strs stsi stss sttd sttr tbbs tbgs tbit tbrb tbst tddb tdis tdri tdss tgts tibi tibs tidd tids tigi tigr tigs tiit tind ting tini tinn tins tint tirb tird tiri tirr tirs tisb tisi tiss tist titi tits titt tndd tngs tnts tri- trib trig trin tris trit trng trsd trsi trst trtr tsbd tsdb tsgt tsid tsig tsin tsis tssg tssi tssr tsst tsts ttbb ttss tttt