bbuss bibbs bibis bibus biisk bikus bilbi bili- bilis bilks billi bills billu bilsi bisks blikk blisk bliss blubs buiki bukk- bukki bulb- bulbi bulbs bulis buliu bulki bulks bull- bulli bulls bulul bulus busks bussu busuu ibill iblis ibuki iiiii iikss ikiss ikulu ikusi ilisu illui illuk illus ilulu is-is isbul isili isill isisi issus issuu isuli isuus iuliu iulus kibbi kibi- kiiki kiili kikis kikki kikuu kilis kill- killi kills kisii kiss- kissi kluis kluki ksubi kubik kubis kubul kuisi kuksu kukui kulik kulli kullu kului kulul kulus kuski kuusi kuusk libis libus liiku liisi likli lilis liliu lilli lilus lisis liss- lissu liuli lubki lukis lulli lulls lulul lulus lusik lusis lusks lusus s-bus s-iii sbuks sibiu sibli sibsu sibul siili sikil sikki sikui sikul silks silli sills sisil sisis siski sisli sissi sissu siusi sk-ii skiis skill skils skuki skuli skulk skull sliss slubs sluis sluss ssbul sssss su-ki subbu subis subli subss subuk suibu suilk sukli sukuk sulik sulis sulki sulks sulli sulls suluk sulus susil susuk susus ubisi ublik uibis ululu us-ks usuli ususi uusis uuuuu