-ing ffff ffii ffrr ffun 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 flou fluf fluo flur fnuf fofo fogg fogi fogl fogn fogo foil foin foli foll folo folr fong fono foof fool foon for- forg fori forl forn foro forr foug foul foun four frig fril frin frio frog frol fron frou frug frun fuff fufu fugi fugo fugu fuig fuil fuir fuli full fulu funf fung fuor fur- furg furi furl furn furo furr gfor ggfg gggg ggrn giff gifu gigg gigi gign gigo gilf gilg gili gill gilo ging gini ginn gino ginu giog gioi gion girg giri girl girn giro girr giru giur gli- glin glof glog glor glou glro glug glui glun glur gnin gnof gnoo gnrr goff gofr gofu gogi gogo goif goin golf goli goll golo golu gon- gong goni gonn gono gonu goof goog gooi gool goon goor gorf gorg gori gorn goro gorr gou- gouf goug goul goun gour grif grig gril grin grni grof grog groi grol gron groo gror grou grrl grrr gruf grug grui grun grur guff gugg gugi gugu guil guin gulf guli gull gulo gulu gung gunn gurg guri gurl gurn guro gurr guru i-go i-no ifil ifni ifno ifnr ifor ifrf ifri igil igli iglo iglu igni igno ignu 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 innu ino- inoi inol inon inor inou inri inro inui inul inun ioii ioio iolo ioni ionn iono ioof iooi iooo iorg iori ioug ioun irfu iri- irig iril irin irio iron irri irul irun iuiu iuno lfng lgfl lgin liff lifg lifl lifo ligg ligi lign ligo liig liii liin liir lilg lili lill lilo lilu ling linn lino lio- lion lior lirg liri lirl lirn liro lirr liru liuf liun llll lloo loff lofi lofn log- logi logo loif loin loir loiu loli loll lolo long loni lono lonr loof lool loon loor lori lorn loro loui loul loun lour louu lrif lroi lron lrrr luff lufu lugg lugi lugo lugu luif luin luli lull lulu lung luni lunn luno lurg luri n-ii nfff nfon ngio ngol ngon ngor ngou ngri ngur nguu niff nigg nigo niir niiu nili nill nilo nilu ning nini ninl nino niog nion nioo niou niro niru niur nlgn nngn nnnn nofi nogg nogo noif noil noin noio noir nolf noli noll nolo non- nong noni nonn nono nonu noo- nool noon nooo noor nor- norf norg nori norn noro norr noul noun nour nron nrrl nuff nuin nuli null nung nunn nuno nuon nuri nurl nurn nurr nuru off- offo offr offu ofgo ofno ofor ogfr oggi ogin ogli ogni ognl ogog ogoi ogon ogou ogri ogro ogui ogun oigo oiii oion olgr olig olin olio olli ollo olof olog olon olor olur ongi ongo ongu onil onir onlf onni onno onon onor onur ooff oolo oooo orff orfi orfu orgn orgo ori- orif orig oril orin orio orlo orlu orni orno oro- orof oron oror orri orro ouff ouii ouin ouir oulu oun- oung our- ourn ouro ouu- rffl riff rifu rigg rigi rigo rigu riif riin rill rilo rilu rinf ring rinn rino riol rion riou riri rlif rlin rlug rnin rnli roff rofl rofo rogg rogi rogo roif roig roil roin roio roir roiu rolf roll rolo rong roni rono roof roog rooi rool roon roor rori roro roru rouf roul roun rrif rrrr rrun ruff rufo rugg rugi ruif ruin rull rulo runf rung runi runn runo ruri ruro ruru ruun uggo ugli ugni ugol ugri ugro ugur uguu uirr ulli ullo ullr ulno ulo- ulog ulul ungo ungu uni- unif unii unin unio unir unlf unni unno unon unrf unro uofg uofl uofo uor- urff urfi urgi urgu urif urin uriu urni uro- urol uroo urri urun urur uulu uuni uuno uuri uuuu