-ing ffff ffii ffss fiff fifi figg figs fiii fing fini finn fins fisi fiss fixx fsfi fsgs fsix fssf ggfg gggg ggss giff gifs gigg gigi gign gigs giis ging gini ginn gins giss gnin gsif gsis gsix ifis ifni ifns iggs igis igni igns iiii iiis iisi infi infs ings inig inis inni inns inss inxs isin isis issf issi isss ixxi n-ii nfff nfix ngfs ngns ngsn niff nigg nigs ning nini nins nisi niss nixi nngn nnnn nnss nsfs nsin nsis nssf nsss s-ii sfss sggg sggs sgss siff sigg sigi sign sigs sing sini sinn sins sisi siss sixx snig snns ssgs ssin ssis ssns sssf sssi ssss x-fi xfig xfin xggi xiii xing xisi xixi xsgi xsin xxii xxix xxxi xxxx