-ing bbbb bbbs bbin bbng bggs bibb bibi bibs bigb bigg bign bigs biin biis bin- bing bini binn bins bis- biss bnib bnin bnss bsgs bsin bsns gbbs gggg ggss gibb gibs gigg gigi gign gigs giis ging gini ginn gins giss gnib gnin gsis ibis ibns ibsn ibss iggs igis igni igns iiii iiis iisi ings inig inis inni inns inss isbn isin isis issi isss n-ii ngns ngsn nibi nibs nigg nigs ning nini nins nisi niss nngn nnnn nnss nsin nsis nssb nsss s-ib s-ii sbbs sbig sbsi sggg sggs sgss sibi sibs sigg sigi sign sigs sing sini sinn sins sisi siss snib snig snns ssbn ssgs ssin ssis ssns sssb sssi ssss