-ing bbbb bbfn bbin bblb bbng bffl bfgf bgon bibb bibi bibl bibo biff bifi bigb bigg bign bigo biin bili bill bilo bin- bing bini binn bino bio- biog bioi biol bion blin blio blni blno blob blog blon bloo bnib bnin bobb bobi bobo boff bogg bogi bogo boi- boii boil boin bolg boli boll boln bolo bong boni bonn bono boob boof boog bool boon ffff ffii fiff fifi fifo figg figl figo fiii fiil fili fill filn filo fing fini finn fino fion flig flii flin flnb flob flog flon floo fofo fogg fogi fogl fogn fogo foil foin foli foll folo fong fono foof fool foon gbbo gbon ggfg gggg gibb giff gigg gigi gign gigo gilf gilg gili gill gilo ging gini ginn gino giog gioi gion gli- glib glin glob glof glog gnib gnin gnof gnoo gobi gobl gobo goff gogi gogo goif goin golf goli goll golo gon- gong goni gonn gono goof goog gooi gool goon i-go i-no ibfi ibon ifbb ifil ifni ifno igbo igil igli iglo igni igno igon igoo iiii iiio iino iioi iioo ilin ilio ill- illi illo ilni ilno ilog iloo inbo infi infl info ingo inig inni inno ino- inoi inol inon iobi ioii ioio iolo ioni ionn iono ioof iooi iooo lfng lgfl lgin libo liff lifg lifl lifo ligg ligi lign ligo liig liii liin lilb lilg lili lill lilo ling linn lino lio- lion llll lloo lob- lobb lobi lobo loff lofi lofn log- logb logi logo loif loin loli loll lolo long loni lono loob loof lool loon n-ii nbbo nbfl nfff nfib nfon ngio ngol ngon nibi nibo niff nigg nigo nili nill nilo ning nini ninl nino niog nion nioo nlgn nngn nnnn nobi nobo nofi nogg nogo noib noif noil noin noio nolf noli noll nolo non- nong noni nonn nono noo- noob nool noon nooo obbo obin oboi obol obon off- offo ofgo ofno ogb oggi ogin ogli ogni ognl ogog ogoi ogon oigo oiii oion olbo olib olig olin olio olli ollo olof olog olon ongi ongo onil onlf onni onno onon oobi ooff oolo oooo