-ing bbbb bbin bbng bgon bibb bibi bibo bigb bigg bign bigo bigt biin bin- bing bini binn bino bint bio- biog bioi bion biot bito bitt bnib bnin bobb bobi bobo bogg bogi bogo bogt boi- boii boin boit bong boni bonn bono bont boob boog boon boot botb boti botn boto bott btob bttb gbbo gbon ggbt gggg gibb gigg gigi gign gigo ging gini ginn gino giog gioi gion gito gnib gnin gnit gnoo gnti gobi gobo gogi gogo goin goit gon- gong goni gonn gono goog gooi goon goot goti goto gott i-go i-no ibon ibot ibtb igbo igni igno igon igoo igot iiii iiio iiit iino iioi iioo iitt inbo ingo inig init inni inno ino- inoi inon inot intg inti intn into iobi iogt ioii ioio ioit ioni ionn iono iooi iooo ioto itgo itin itno itoi iton itoo itto n-ii nbbo nbti ngio ngon ngtn nibi nibo nigg nigo nigt niit ning nini nino niog nion nioo nitb niti nito nngn nnit nnnn nnot nntn nobi nobo nogg nogo nogt noib noin noio noit non- nong noni nonn nono nont noo- noob noon nooo noot not- noti noto nott ntto obbo obin obit oboi obon obot ogb oggi ogin ogni ogog ogoi ogon oigo oiii oint oion oiti ongi ongo onit onni onno onon ont- onti onto oobi oont oooo ootb otin otit oto- otog oton otoo otti otto tbit tibi tigi tiit ting tini tinn tino tint tion titi tito titt tobi tobo tobt togo togt toit tonb tong toni tonn tono toon toot toti toto tott ttbb tton tttt