-ing ffff ffii ffrr fiff fifi fifo figg figl figo fiii fiil fili fill filn filo fing fini finn fino fion fior firn flig flii flin flog flon floo flor fofo fogg fogi fogl fogn fogo foil foin foli foll folo folr fong fono foof fool foon for- forg fori forl forn foro forr fr-v frig fril frin frio frog frol fron gfor ggfg gggg ggrn giff gigg gigi gign gigo gilf gilg gili gill gilo ging gini ginn gino giog gioi gion girg giri girl girn giro girr gli- glin glof glog glor glro gnin gnof gnoo gnrr goff gofr gogi gogo goif goin golf goli goll golo gon- gong goni gonn gono goof goog gooi gool goon goor gorf gorg gori gorn goro gorr govi grif grig gril grin grni grof grog groi grol gron groo gror grov grrl grrr gvvv i-go i-no ifil ifni ifno ifnr ifor ifrf ifri igil igli iglo igni igno igon igoo igor igri iiii iiio iino iioi iioo ilin ilio ilir ill- illi illo ilni ilno ilog iloo infi infl info ingo inig inni inno innr ino- inoi inol inon inor inri inro ioii ioio iolo ioni ionn iono ioof iooi iooo iorg iori iri- irig iril irin irio iron irov irri ivig ivin ivon ivor lfng lgfl lgin lgov liff lifg lifl lifo ligg ligi lign ligo liig liii liin liir liiv lilg lili lill lilo ling linn lino lio- lion lior lirg liri lirl lirn liro lirr livi livo llll lloo lo-v loff lofi lofn log- logi logo loif loin loir loli loll lolo long loni lono lonr loof lool loon loor lori lorn loro lovo lrif lroi lron lrrr lvii lviv lvov lvrr n-ii nfff nfon ngio ngol ngon ngor ngri niff nigg nigo niir nili nill nilo ning nini ninl nino niog nion nioo niro nirv nivo nivr nlgn nngn nnnn nofi nogg nogo noif noil noin noio noir nolf noli noll nolo non- nong noni nonn nono noo- nool noon nooo noor noov nor- norf norg nori norn noro norr norv nov- novi novo nron nrrl nvfr nvir off- offo offr ofgo ofno ofor ogfr oggi ogin ogli ogni ognl ogog ogoi ogon ogri ogro oigo oiii oion olgr olig olin olio olli ollo olof olog olon olor olov olvi ongi ongo onil onir onlf onni onno onon onor ooff oolo oooo orff orfi orgn orgo ori- orif orig oril orin orio orlo orni orno oro- orof oron oror orri orro orvr ovfl ovi- ovil ovni ovo- ovol ovon ovoo rffl riff rigg rigi rigo riif riin rill rilo rinf ring rinn rino riol rion riri rivo rlif rlin rnin rnli roff rofl rofo rogg rogi rogo roif roig roil roin roio roir rolf roll rolo rong roni rono roof roog rooi rool roon roor rori roro rovi rovo rrif rrrr vfli vflo vfor viff vigo vigr viii vili vill ving vini vino viol vion virg viri virl viro virr vivi vivo vlli vlog vnir voff vofr vogl voil voin voio voir volf voli voll volo voni vonn voog vool voor vor- vori voro vril vrin vrio vrnn vron vvog vvvv