-ism bbbb bbbs bffs bfpp bfsi bfts bftt bibb bibi bibs biff bifi biis bims bipm bipp bips bipu bis- bisp biss bist bisu bits bitt bitu bmmi bmpt bmts bmus bpms bpsu bptf bpti bsff bsfs bsim bsms bsmt bspp bssm bsts bsup btbp btps btss bttb btus bubb bubi bubs bubu buff buif buis buit buiu bum- bumb bumf bump bums bups busi buss bust busu but- buti buts butt buus fbis fbus ffff ffii ffps ffss fftf fibp fibs fiff fifi fifm fift fiii fipp fips fisi fism fiss fist fisu fiti fits fitt fmss fsfi fsim fspf fssf fssp ftii ftps ftub fubb fubs fubu fuff fufu fuit fumi fums fusi fuss fust fusu futi futs futu ibbm ibfi ibim ibis ibmp ibms ibsf ibss ibtb ibts ibus ifbb ifim ifis ifit ifps ifsb ifsp iiii iiis iiit iipf iipm iisi iism iisp iist iisu iitm iitt iium imbi imfi imit immi imms immt impf impi imps impt imsf imsi imsp imss imst imsu imts imup imus ipmi ipmp ipms ippf ipsi ipsp ipss ipts ipus iput isbt isfp isim isis isit ismi isms ispf isps issf issi issp isss issu isti istp ists isum isup isus itbs itif itim itis itms itsf itsi itsp itsu ittf itum itup iuiu iums iupp iuss iust mbbs mbim mbis mbms mbps mbsf mbus mfbm mfps mfsb mftf mibs miff mifi miii miis miit mim- mimi mimp mims mipi mips mipt mis- misi miss mist misu mit- mitb miti mitm mits mitt mitu miui mmff mmii mmis mmmm mmms mmpi mmpu mmst mmsu mmts mmus mpfs mpit mppf mppp mpps mpst mptp msff msfs msft msmb msmm msms msmu mspb mspi mspp mssf mssi mssm mssp msst mstp msts msus mtbs mtff mtss mtst mtts mubi mubs muff mufi mufu muis muit mumm mump mums mumu mups musi muss must musu muti muts mutt mutu muut pbsp pfff pfft pfis pfit pfps pfui pibb pibi piff pifs piip pimi pimp pims pimt pipi pipp pips pisi piss pist pisu pitf piti pits pitt pitu pium pius pmip pmmp pmmu pmpm pmsf pmts pmut ppib ppif ppms pppp ppps ppsf ppss ppts pptt psbt psfs psim psip psis pspi pspp psps pssm psst psts pstu ptmp ptms ptui pubs pubu puff puft puis puit puiu pumi pump pupi pups pupu pusi puss pust put- puti puts putt putu s-ib s-ii sbbs sbsi sbsp sbst sbus sfmm sfss sfsu sftp sfts sibi sibs sibu siff sift sifu siim siit simi simm simp sims simt sipi sipp sips sipt sisi siss sist sisu sit- siti sits sitt situ siui sium sius siut smbf smif smis smit smps smsp smss smti smtp smtu smus smut spfs spib spim spip spis spit spmi spms spmt sppf spps spsp spss spst sptb spts spui spus sput ssfp ssis ssit sspf ssps sspt sssb sssf sssi sssm ssss sstb sstp ssts stbs stfu stib stif stim stip stis stit stmp stms stmt stpf stpp stps stsf stsi stsm stss stub stuf stum stup stus stut sub- subb subi subm subs suf- suff sufi sufs sufu suis suit sum- sumi sump sums sumu sup- supp sups supt sus- susi susp suss sust susu suti sutu suum suus tbbs tbit tbsp tbst tbtp tfpt tfsi tfss tftp tibi tibs tibu tiff tift tiit tiiu timi timm timp tims timu tip- tipi tipp tips tipt tipu tisb tisi tism tiss tist titi titp tits titt titu tium tmps tmsi tmsp tmtt tpms tpmt tppp tptp tput tsfm tsis tsmp tsps tspt tssf tssi tssm tsst tstm tsts tsui tsum tsup ttbb ttff ttim ttms ttss tttt tubb tubs tubu tuff tufi tufm tuft tufu tuim tuis tuit tuiu tumb tumi tump tums tumu tupi tups tupu tusi tusm tuss tust tuti tuts tutt tutu tuum ubbi ubii ubis ubit ubtf ufip ufms ufpb uftp uims uipi uist uits umb- umbi umff umit umms umps umsp umsu umts umus umut upim upis uppp uppu upsi upup usbs usfi usfs usif usim usip usis usmm usmp usms uspp usps ussb ussf usss usst ussu ustb usti ustm ustp usts usui usus utis utmb utmp utti uttu uusi uutf uuuu