-ing bbbb bbfn bbin bbng bfgf bftt bgon bibb bibi bibo biff bifi bigb bigg bign bigo bigt biin bin- bing bini binn bino bint bio- biog bioi bion biot bito bitt bnib bnin bobb bobi bobo boff bogg bogi bogo bogt boi- boii boin boit bong boni bonn bono bont boob boof boog boon boot botb boti botn boto bott btob bttb ffff ffii fftf fiff fifi fifo fift figg figo fiii fing fini finn fino fint fion fiti fitt fntb fobt fofo fogg fogi fogn fogo foin fong fono font foof foon foot foti foto fott ftii gbbo gbon ggbt ggfg gggg gibb giff gift gigg gigi gign gigo ging gini ginn gino giog gioi gion gito gnib gnin gnit gnof gnoo gnti gobi gobo goff gogi gogo goif goin goit gon- gong goni gonn gono goof goog gooi goon goot goti goto gott gtfo i-go i-no ibfi ibon ibot ibtb ifbb ifit ifni ifno iftn ifto igbo igni igno igon igoo igot iiii iiio iiit iino iioi iioo iitt inbo infi info ingo inig init inni inno ino- inoi inon inot intg inti intn into iobi iogt ioii ioio ioit ioni ionn iono ioof iooi iooo iotf ioto itgo itif itin itno itof itoi iton itoo ittf itto n-ii nbbo nbti nfff nfib nfon nfto ngio ngon ngtn nibi nibo niff nift nigg nigo nigt niit ning nini nino niog nion nioo nitb nitf niti nito nngn nnit nnnn nnot nntn nobi nobo nofi nogg nogo nogt noib noif noin noio noit non- nong noni nonn nono nont noo- noob noon nooo noot not- noti noto nott ntof ntto obbo obin obit oboi obon obot off- offo ofgo ofit ofno ogb oggi ogin ogni ogog ogoi ogon oigo oiii oint oion oiti ongi ongo onit onni onno onon ont- onti onto oobi ooff oont oooo ootb otif otin otit oto- otof otog oton otoo otti otto tbit tbnf tfin tfot tgif tibi tiff tifo tift tigi tiit ting tini tinn tino tint tion titi tito titt tobi tobo tobt toff tofi tofo toft togo togt toit tonb tong toni tonn tono toof toon toot toti toto tott ttbb ttff ttfn tton tttt