-ing -ism ffff ffii ffrr ffss fiff fifi fifm figg figs fiii fimr fing fini finn fins firm firn firs fisi fism fiss fmri fmsr fmss fnrs frig frim frin fris frmn frns frsm fsfi fsgs fsim fssf gfms ggfg gggg ggrn ggss giff gifs gigg gigi gign gigs giis ging gini ginn gins girg giri girn girr girs gism giss gmmr gmrs gnin gnrr grif grig grim grin gris grni grrr grrs grsm grss gsif gsis ifim ifis ifni ifnr ifns ifrf ifri iggs igis igni igns igri igsm iiii iiis iinm iirs iisi iism iisr imfi imin imir immi imms imri imrr imsf imsi imsr imss infi infs ings inig inis inni innr inns inri inrs inss irfm irgm irgs iri- irig irin iris irms irri irrs irsf irsg isim isin isis ismi isms isrg isri issf issi issr isss mfng mfri mfrs mgrm mgrs mgsm miff mifi migg migi migs miii miin miis mim- mimi mims ming mini minn mins mirg miri mirr mirs mis- misg misi misn misr miss mmff mmgn mmii mmis mmmm mmms mmrf mngr mnin mnis mrgn mris mrng mrsi msff msfs msgr msgs msmm msms mssf mssg mssi mssm mssr n-ii nfff nfrs nfsm nfsr ngfs ngmn ngns ngri ngsn niff nigg nigs niir nimi nimr nims ning nini nins nirs nisi niss nmff nmfs nmis nmri nngn nnnn nnss nsfs nsin nsis nsnr nssf nssr nsss rfgs riff rifs rigg rigi rigs riif riin riis rimi rimm rims rinf ring rinn riri rirs risi rism riss rmif rmrg rngs rnin rrif rrrr rsis rsmg rsnn rsnr s-ii sfmm sfss sggg sggs sgsm sgss siff sifr sigg sigi sign sigs siim simi simm sims sing sini sinn sins sirf siri sirr sirs sisi siss smgs smif smig smin smis smrf smsn smss snig snir snns snrs srfi srim sris srni srnn ssgs ssin ssis ssns ssrg ssri ssrm ssrs sssf sssi sssm ssss