-ing gggg ggss gigg gigi gign gigs giis ging gini ginn gins gipi gipp gips giss gist gits gnin gnip gnit gnps gnti gntp gpgp gpip gpsg gpsi gpss gsis gspt gtip iggs igis igni igns igsp iiii iiis iiit iisi iisp iist iitt ings inig inis init inni inns inp- inpi inpp inpt insp inss inst intg inti intn intp ints ipin ipsi ipsp ipss ipts isin isis isit isnt isps issi issp isss isti istp ists itgs itin itis itsi itsp n-ii ngns ngsn ngtn ngts nigg nigs nigt niip niit ning nini nins nips nipt nisi nisp niss nist niti nits nngn nnit nnnn nnpi nnss nntn npin npss nptn nsin nsis nspi nsps nssp nsss nstp nsts ntis ntss pgss pigg pign pigp pigs pigt piip ping pini pinn pinp pins pint pipi pipp pips pisg pisi piss pist piti pits pitt pnin pnpp ppgi ppig pppn pppp ppps ppss pptn ppts pptt psgi psip psis psni pspi pspp psps psst psts ptgs s-ii sggg sggs sgps sgss sgts sigg sigi sign sigs siit sing sini sinn sinp sins sint sipi sipp sips sipt sisi siss sist sit- siti sitn sits sitt snig snip snit snns snpg snpp spgt spig spin spip spis spit spns spps spsp spss spst spts ssgs ssgt ssin ssis ssit ssns ssps sspt sssi ssss sstp ssts stig stip stis stit stng stnn stns stpp stps stsi stss tgts tigi tigs tiit ting tini tinn tins tint tip- tipi tipp tips tipt tisi tiss tist titi titp tits titt tngs tnsp tnts tppp tptp tsgt tsig tsin tsis tspn tsps tspt tssg tssi tsst tsts ttss tttt