-ism ffff ffii ffrr ffss fftf fiff fifi fifm fifo fift fiii fimo fimr fior fios firm firs fisi fism fiss fist fiti fits fitt fmri fmsr fmss fofo fois fomo fomt foof foom foos foot for- fori form foro forr fors fort fosi foso foss fost foti fotm foto fots fott frim frio fris frit from fros frot frsm frso frst fsfi fsfo fsim fssf ftii ftos ftrs ftsr ifim ifis ifit ifor ifrf ifri ifso ifto iiii iiio iiis iiit iioi iioo iios iirs iisi iism iisr iist iitm iitr iitt imfi imir imit immi immo imms immt imof imri imro imrr imsf imsi imso imsr imss imst imto imts ioii ioio ioit iomo ioof iooi iooo ioos iori iors ioso iotf ioto irfm iri- irio iris irmo irms irri irrs irsf irtf irti irts isim isis isit ismi ismo isms iso- isof isor isos isri issf issi isso issr isss isti isto istr ists itif itim itis itmo itms itof itoi itoo itor itos itrf itri itrs itsf itsi itso ittf itto mfor mfri mfrs mftf miff mifi miii miio miis miit mim- mimi mimo mims mio- mios miri miro mirr mirs mirt mis- misi miso misr miss mist mit- miti mitm mito mits mitt mmff mmii mmis mmmm mmms mmor mmrf mmst mmts moff mofo moif moii moio moir mois moit momi momo moms moor moos moot morf mori moro mors mort mosi moso moss most moti motm moto mots mott mris mrsi mrtm mrts mrtt msff msfs msft msmm msms msor msrt mssf mssi mssm mssr msst mstr msts mtff mtom mtor mtrr mtss mtst mttr mtts off- offo offr offs ofit ofor ofst oiii oios oirt oism oist oiti omim omio omis omit omo- omoi omoo omor omri omro omsi ooff oofs ooms oooo ooos oort oosi oost oots orff orfi orfs ori- orif orio oris orit ormo oro- orof orom oror oros orot orri orro orrs orsi orso orto orts osii osim osis osm- osmo osoi osoo osor osos osro ossi osso osti ostr osts otif otis otit oto- otof otoo otor otos otro otrs otso otti otto otts riff rifs rift riif riis rimi rimm rimo rims riom rios riot riri rirs risi rism riso riss rist riti rito rits ritt rmif rmst roff rofo roif roio roir rois roit romi romm romo roms roof rooi room roor roos root rori roro rort rosi roso ross rost roti roto rotr rots rott rrif rrrr rsis rsos rsts rtfm rtmi rtms rtss rtts s-ii s-os sfio sfmm sfor sfos sfro sfss sfts siff sifo sifr sift siim siit simi simm simo sims simt sior sios siot sirf siri siro sirr sirs sirt sisi siss sist sit- siti sito sits sitt smif smis smit smof smos smot smrf smrt smss smti sofi sofo soft soif soim soir sois soit somi somm somo soof soom soor soos soot sori sorm soro sorr sors sort sosi soso soss sost sotm soto sots srfi srim sris sros srtr ssis ssit ssot ssri ssrm ssrs sssf sssi sssm ssss ssts stif stim stio stir stis stit stms stmt stof stom stoo stor stos stot stri stro strs stsf stsi stsm stss sttr t-mo tfot tfrs tfsi tfss tiff tifo tift tiit timi timm timo tims tios tiri tiro tirr tirs tisi tism tiso tiss tist titi tito tits titt tmos tmro tmsi tmtt toff tofi tofo toft tois toit tomi tomm tomo toms tomt toof toom toor toos toot torf tori torm toro torr tors tort tosi toso toss tost toti totm toto totr tots tott trfm trfr tri- trif trim trio tris trit trmi trms troi trom troo tros trot trsi trst trtr tsfm tsis tsoi tsom tsos tssf tssi tssm tssr tsst tstm tsts ttff ttim ttms ttss tttt