-ism bbbb bbbs bibb bibi bibs biis bims bimx bis- biss bisu bixi bmmi bmus bsim bsix bsms bssm bubb bubi bubs bubu buis buiu buix bum- bumb bums busi buss busu busx buus ibbm ibim ibis ibms ibmx ibss ibus iiii iiis iisi iism iisu iium imbi imix immi imms imsi imss imsu imsx imus isbx isim isis ismi isms issi isss issu isum isus iuiu iums iuss ixxi mbbs mbim mbis mbms mbus mibs miii miis mim- mimi mims mis- misi miss misu miui mixi mixx mmii mmis mmix mmmm mmms mmsu mmus mmxi mmxx msmb msmm msms msmu mssi mssm msus mubi mubs muis mumm mums mumu musi muss musu muxi muxu mxii mxim mxxi s-ib s-ii sbbs sbsi sbus sibi sibs sibu siim simi simm sims sisi siss sisu siui sium sius sixx smis smss smus ssis sssb sssi sssm ssss sub- subb subi subm subs suis sum- sumi sums sumu sus- susi suss susu suum suus sux- ubbi ubii ubis uims uimx umb- umbi umms umsu umus usbs usim usis usix usmm usms ussb usss ussu usui usus uusi uuuu uxus xibu xiii xisi xixi xmii xmms xuxu xxii xxix xxxi xxxx