b-r-k bbsrc bbuss brrrr bruch bruck bruhs brush brusk bruss buchs buchu bucks bucku bucsu bucur bukk- buksh burbs burch burck burcu burks burrs burru buruc buruk burus busch busks bussu busur busuu c-bus ccccc chubb chubs chuck chur- churk churr churs churu chuss chuuk cruck crush cubub cucks cucuk curbs curch currs cusks hhhhh hubbs hubur hucch hucks huhuh huhus husch husks huuru khuru khush khuur krush kuchu kucuk kuksu kukur kurbu kurch kurku kursk kuruc kuruk kurus kusch kushk kusuh kusur kuusk rubus rucks ruhrs ruhub rukhs rukus rusch rushh rusks russh s-bus s-sch sbuks sccbc schuh schur scrch scrub scrus scurr shhhh shrub shubb shuch shuck shukr shurk shuru shush skruk skurr skuru sssrb ssssh sssss ssukh subbu subss subuk suck- sucks sucr- suhur sukru sukuh sukuk sukur surch surkh sursk suruh suruk surur surus susch susuk susus uchku uchuu uh-uh uhhuh uhuhs uhuru urshu ursuk ursus urubu urucu us-ks us-sc ushus uuuuu