-ing dddd didi dido dif- diff digg digi digo diii din- ding dini dinn dino dion dod- dodd dodg dodi dodo doff dog- dogg dogi dogo doid doig doin dond dong doni donn dono dood doof doon ffff ffii fidf fido fiff fifi fifo figg figo fiii find fing fini finn fino fion fndd fndg fndn fofo fogg fogi fogn fogo foid foin fond fong fono food foof foon gdnf ggfg gggg gidd gidi gido giff gigg gigi gign gigo ging gini ginn gino giog gioi gion gnin gnod gnof gnoo godi godo goff gogi gogo goif goin gon- gond gong goni gonn gono good goof goog gooi goon i-go i-no iddo idgf idgo idid idig idin idio idno idog idon ifid ifni ifno igni igno igon igoo iiii iiio iino iioi iioo ind- indi indo infi info ingo inid inig inni inno ino- inoi inon iod- iodd iodo ioii ioio ioni ionn iono ioof iooi iooo n-ii nddo ndfi nfff nfon ngio ngon nidd nidi nido niff nigg nigo nind ning nini nino niog nion nioo nngn nnnn nodi nodo nofi nogg nogo noid noif noin noio non- nong noni nonn nono noo- noon nooo oddd oddi odin odio odon odoo off- offo ofgo ofid ofno oggi ogin ogni ogod ogog ogoi ogon oido oigo oiii oion ondi ondo ongi ongo onni onno onod onon oodi ooff ooid oooo