bbbbbb beebee beebem beembe behele behell behelm belleu bellue bellum belull bemmel blublu bubble bubele bububu bulbel bulbul bull-e bullee bulleh bumbee bumble bummel bummle ebulum eleele emblem embull emelle emmele eubule hebbel heebee heehee hehehe hehheh helbe helbeh helele helleh hellue hellum hemble hemele hemmel hemule hubble hubbub hububb huemul huh-uh huluhu humbel humbul humhub humhum hummel hummum leelee lembeh lemele lemuel lumbee mbembe meeble melhem mellel mellum mememe mhlume mm-hmm muelle muhuhu mullum mulmul mumble muumuu uh-huh ulehle um-hum