-ing bbbb bbin bbng bbrg bgon bibb bibi bibo bigb bigg bign bigo biin bin- bing bini binn bino binz bio- biog bioi bion birb birg biri birn biro birr bizz bnib bnin bnor bnrr bobb bobi bobo bogg bogi bogo boi- boii boin bong boni bonn bono boob boog boon boor booz bor- borg bori born boro borr borz bozi bozo brig brin brio briz brno brob brog bron broo bror broz brrr bzzz gbbo gbon gggg ggrn gibb gibz gigg gigi gign gigo ging gini ginn gino giog gioi gion girg giri girn giro girr gizi gizo gizz gnib gnin gnoo gnrr gobi gobo gogi gogo goin gon- gong goni gonn gono goog gooi goon goor gorb gorg gori gorn goro gorr gorz gozi gozo grbr grib grig grin griz grni grob grog groi gron groo gror grrr gzin i-go i-no ibon ibri ibro igbo igni igno igon igoo igor igri iiii iiio iino iioi iioo inbo ingo inig inni inno innr ino- inoi inon inor inoz inri inro iobi ioii ioio ioni ionn iono iooi iooo iorg iori iri- irig irin irio irob iron irri izon izzo n-ii nbbo ngio ngon ngor ngri nibi nibo nigg nigo niir ning nini nino niog nion nioo niro nngn nnnn nobi nobo nogg nogo noib noin noio noir non- nong noni nonn nono noo- noob noon nooo noor nor- norb norg nori norn noro norr nozi nron nzrb obbo obin oboi obon obor obri obro ogb oggi ogin ogiz ogni ogog ogoi ogon ogri ogro oigo oiii oion ongi ongo onir onni onno onon onor onoz onzo oobi oooo oozi orbb orbi orbo orgn orgo ori- orig orin orio orni orno oro- oron oror oroz orri orro orzo ozon rbbb rbbr rgbi rib- ribo rigg rigi rigo riin ring rinn rino rion rioz riri rizi rizz rnbr rnin rob- robb robi robo rogg rogi rogo roig roin roio roir roiz rong roni rono roob roog rooi roon roor rooz rori roro rozi rozz rrrr z-ro zgon zibo zigg zigi zigo zing zinn zino zion ziri ziro zizi zizz znng zobo zogg zogi zogo zoio zon- zong zoni zoo- zoon zorb zorg zori zorn zoro zozo zrin zzzz