bbbee be-er beber beebe beeve bembe bemer berbe berme berre berru berum beuer beure beuve bever bevue brebu breem breer breme bremm brere breu- breve brmmm brrrr bruer brume brumm bubbe buber bumbu bumme burru ebber ebure eeeee eevee eever embee ember embue emeer emere emmer emure erbbe erber erem- erere ereve ervum eum-u eurre evere everr eveve mbebe mbere mbube mburu mbuvu mebbe meemu meere meeve membe memer merer merre merur merve meuer meure meuve mmmmm mreru mumbe mumme mummu mureu murre murru murum rebbe reber reeme reere reeve remee remer remue rere- reree rerum reuer reume rever revue rubee ruber ruere rumbe rumer rummu uber- ubume umbe- umber umbre umeer umeme umevu ureme urubu uuuuu veber vebre veere veeve vembu vereb verme verre verum verve veuve vever vreme vuere vuver