iisr imfi imin imir immi immo imms imno imof imon impf impi impr imps imri imro imrr imsf imsi imso imsp imsr imss infi info infp infs ingo ings inig inis inni inno innr inns ino- inoi inon inor inos inp- inpi inpp inri inro inrs inso insp inss ioii ioio iomo ioni ionn iono ions ioof iooi iooo ioos iops iorg iori iors ioso ipin ipmi ipmp ipms ipop ipos ippf ippo ippr ipri ipsi ipso ipsp ipss irfm irgm irgs iri- irig irin irio irip iris irmo irms iron irop irps irri irrs irsf irsg irsp isfp isim isin isis ismi ismo isms isno iso- isof ison isop isor isos ispf ispr isps isrg isri isrp issf issi isso issp issr isss mfng mfor mfps mfri mfrp mfrs mgos mgrm mgrs mgsm miff mifi migg migi migo migs miii miin miio miis mim- mimi mimo mimp mims ming mini minn mino mins mio- mion mios mipi mipr mips mirg miri miro mirr mirs mis- misg misi misn miso misr miss mmff mmgn mmii mmis mmmm mmms mmor mmpi mmpr mmrf mmrp mngr mnin mnis mnop mnos mnpo moff mofo mogg mogi mogo mogs moif moii moin moio moir mois momi momo moms mon- mong moni monn mono mons moog moon moop moor moos mopp mops morf morg mori morn moro mors mosi moso moss mpfs mpgs mpio mpir mpni mppf mppp mpps mprf mpri mpro mprp mrgn mris mrng mron mrps mrsi msff msfs msgr msgs msmm msms msnp mson msop msor mspi mspp msrp mssf mssg mssi mssm mssp mssr n-ii nfff nfip nfon nfps nfrs nfsm nfsr ngfs ngio ngmn ngns ngom ngon ngor ngos ngri ngsn niff nigg nigo nigs niip niir nimi nimo nimp nimr nims ning nini nino nins niog nion nioo nios nipr nips niro nirs nisi niso nisp niss nmff nmfp nmfs nmis nmon nmos nmri nmsp nngn nnnn nnos nnpi nnpr nnss nofi nogg nogo nogs noif noin noio noir nois nom- nomi nomo noms non- nong noni nonn nono nons noo- noon nooo noop noor noos nops nor- norf norg nori norm norn noro norr nors nos- nosm noss npif npin npri nprm npss nron nrpn nrps nrsp nsfs nsin nsis nsnr nsof nsos nspi nsps nssf nsso nssp nssr nsss off- offo offr offs ofgo ofno ofor ogfr oggi ogin ogni ogog ogoi ogon ogri ogro ogsi ogsm oigo oiii oins oion oios oism omfg omgp omim omin omio omis omn- omni omo- omoi omon omoo omor omps omri omro omsi omsn ongi ongo onir onis onni onno onon onor onos onpg onso ooff oofs ooms oons oooo ooos oops oosi opii opin opio opis opms opng opo- opon opor opos oppi oppo opps opsi opsm orff orfi orfs orgn orgo orgs ori- orif orig orin orio oris ormn ormo orni orno orns oro- orof orom oron oror oros orpi orps orri orro orrs orsi orso osgi osii osim osin osip osis osm- osmo osno osnr osoi osoo osor osos ospm osro ossi osso pfff pffr pfgs pfis pfps pgmp pgms pgss piff pifs pigf pigg pign pigo pigp pigs piip pimi pimp pims ping pini pinm pinn pino pinp pins pion pipi pipo pipp pips pirg piri pirn piro pirr pirs pisg pisi piso piss pmgs pmip pmmp pmoi pmos pmpm pmpo pmrs pmsf pmsg pnin pnnm pnom pnon pnpo pnpp pnro poff pofi pogg pogo pogs poin poio pois pomi pomo pomp poms pong poni pono ponp pons poof poon poop poor poos pop- popi popo popp pops porg pori porn poro porr pors posi posn poso poss ppgi ppif ppig ppms ppos pppn pppo pppp ppps pprf pprm ppsf ppss prfs prgs pri- prif prig prii prim prin pris prnp pro- prof prog prom pron proo prop pros prps prri prrm prrs prsi prso prss psfs psgi psgr psim psip psis psni psnr psoi pson psos pspi pspp pspr psps psrp pssm psso rfgs riff rifs rigg rigi rigo rigs riif riin riis rimi rimm rimo rims rinf ring rinn rino riom rion rios ripi ripp ripr rips riri rirs risi rism riso risp riss rmif rmon rmrg rmrp rmsp rngs rnin rnsp roff rofo rogg rogi rogo roif roig roin roio roir rois romi romm romo romp roms rong roni rono rons roof roog rooi room roon roop roor roos ropo rops rori roro rosi roso rosp ross rpgs rpii rpms rpof rpon rpos rppn rpps rrif rrmp rrrr rrsp rsis rsmg rsnn rsno rsnr rsos rspo rsps s-ii s-os sfgp sfio sfmm sfog sfor sfos sfro sfss sggg sggs sgio sgps sgro sgsm sgss siff sifo sifr sigg sigi sign sigo sigs siim simi simm simo simp sims sing sini sinn sino sinp sins sion siop sior sios sipi sipo sipp sips sirf siri siro sirp sirr sirs sisi siss smgs smif smig smin smis smof smog smon smos smps smrf smsn smsp smss snig snip snir snmp snns snog snom snoo snop snor snos snpg snpo snpp snrs sofi sofo sogi sogn sogo sogs soif soim soin soir sois somi somm somn somo son- song soni sono sons soof soog soom soon soop soor soos sopi sopo sopp sops sorg sori sorm sorn soro sorr sors sosi soso soss spfs spig spim spin spio spip spir spis spmi spms spns spon spoo spop spor spos sppf spps spri sprm spro sprs spso spsp spss srfi srim sris srni srnn srno sros srps srsp ssfp ssgs ssin ssis ssns ssop sspf sspo ssps ssrg ssri ssrm ssrs sssf sssi sssm ssss

-form figgs fiing fiini fimir fingo finif finis finno finns finos fionn fiori firgo firmi firmo firms firns firon firos firpo fisim fison fissi fmiso fofos foggo foggs fogin fogsi foini foins foios foir- foism fomin fomon fomor fongs fonio fonni fonos fonsi fonso foons fopos forgo forio form- forms forni forno foros forro forso forss frigg frigo frigs friis fring friog frios fripp friso friss frogn frogs fromm frons froom froop