b-reel bbbbbb beblur beebee beebem beefer beeler beembe beemer beerme befell beflee beflum befree befume belber beller belleu bellue bellum belull bemmel berbee berber bereel berere bermel berrer berube beumer beurre bleere blublu blumer blurre brebel breefe breere bremer breuer brubru bruel brulee brumel brumle bruree bubber bubble bubele bububu bueler buffel buffer buffle buffum bulbel bulbul bull-e bullee buller bulmer bumbee bumble bummel bummer bummle burble burbur burell burfee burler burree burrel burrer eberle ebrulf ebulum eburru eburum eebree eeuler efeler effere effume elbeuf eleele elemer elumur embelf emblem embree embrue embull emeere emelle emmele emmure erbree ermler eubule euller feeble feeler feelme felber feller femble femmer ferber ferfel ferfer ferrel ferrer ferrum ferrur ferule fleble flemer fleume fleure fluber flurre freele frefre freure frumel fubble fueler fuffle fuller fulmer fumble fummel furber furfur furler furrer furrfu leeful leelee leerer leffel lefull lemele lemere lemmer lemuel lemure lubber lubefu luffer lufful luller lumbee lumber lurulu mbembe meeble meerle mefeel melber mellel meller mellum member membre mememe memere merbel mermer merrem merure mrblue muelle muffel muffle mufler mulere muller mullum mullur mulmul mulmur mumble mummer murell murmur murree murrel muumuu rebble rebell rebuff rebulb reefer reeffe reeler reeuel refeel refeff refell reflee reflue refuel refurb refurl releef reller relleu relume remble remeue remufe rereel rerule reuele reuere reuler reulle rubbee rubbel rubber rubble rubell rubrum rueful ruelle ruffer ruffle ruleml ruller rumber rumble rumbur rumfle rummel rummer rummle rumule umbrel umurlu uruffe