-ing ffff ffii fiff fifi fifo figg figl figo fiii fiil fili fill filn filo fing fini finn fino fion flig flii flin flog flon floo fofo fogg fogi fogl fogn fogo foil foin foli foll folo fong fono foof fool foon ggfg gggg giff gigg gigi gign gigo gilf gilg gili gill gilo ging gini ginn gino giog gioi gion gli- glin glof glog gnin gnof gnoo goff gogi gogo goif goin golf goli goll golo gon- gong goni gonn gono goof goog gooi gool goon i-go i-no ifil ifni ifno igil igli iglo igni igno igon igoo iiii iiio iino iioi iioo ilin ilio ill- illi illo ilni ilno ilog iloo infi infl info ingo inig inni inno ino- inoi inol inon ioii ioio iolo ioni ionn iono ioof iooi iooo lfng lgfl lgin liff lifg lifl lifo ligg ligi lign ligo liig liii liin lilg lili lill lilo ling linn lino lio- lion llll lloo loff lofi lofn log- logi logo loif loin loli loll lolo long loni lono loof lool loon n-ii nfff nfon ngio ngol ngon niff nigg nigo nili nill nilo ning nini ninl nino niog nion nioo nlgn nngn nnnn nofi nogg nogo noif noil noin noio nolf noli noll nolo non- nong noni nonn nono noo- nool noon nooo off- offo ofgo ofno oggi ogin ogli ogni ognl ogog ogoi ogon oigo oiii oion olig olin olio olli ollo olof olog olon ongi ongo onil onlf onni onno onon ooff oolo oooo