bbbee be-er bebel beber beebe beele beher behle behue belee bellb belle belue belur berbe bereh berel berhe berle berre berru beuer beule beure bheel bheer bhele bleer blehr blere bleue bluer blurb blure blurr brebu breel breer brell brere breu- brrrr bruer bruhl brule brull bubbe buber buble buell buhle bulb- bull- bulle bulul bureh burel burle burru ebber ebble ebell eberl eblul ebull ebure eeeee eeler elele ellel eller ellul elulu eluru erbbe erber erere euell euhel euler eurel eurre h-e-b he-he hebbe hebe- hebel heber heble heele heere heler helle helre helue herel herle herre herur heuer heule heure hhhhh hrere hubbe hubel huber hubur huere huhuh huleh huler hulle hurbe hureh hurel hurll hurre huuru lebel leber leell leere lehel lehre leleu lelle lerer lubbe luber luble lubur luleh lulle lulul lurer lurue rebbe rebel reber reere reerh reher rehue relee relue rere- reree reuel reuer reule rubee rubel ruber ruble ruehl ruele ruell ruere ruhle ruhub ruler ruule ubble uber- uh-ee uh-uh uhhuh uhler uhuru ullur ululu uluru urelu urubu uuuuu