b-reel b-tree bbbbbb beblur beebee beebug beegee beeler beeter beetle begele begger beglue beguel begull belber belett belgue beller bellet belleu bellue beltel belter beltre belull belute berbee berber bereel bereet berege berere bergel berger bergle berrer berret bertel bertre berube betell betelu betere betete betrue bettee bettel better bettle betutu beugle beurre bleere blublu bluett blurre bluter brebel breege breere breger bregge brette breuer brgule brubru bruel brugge brulee bruree brutel bubber bubble bubele bububu bueler buellt bugbug bugger bugget bugler buglet bugull bulbel bulbul bulger bulget bulgur bull-e bullee buller bullet bultel bulter burbet burble burbur burell burgee burger burgle burgul burler burlet burree burrel burrer burret burtle burutu butere butler buttel butter buttle ebbert eberle eburru eebree eeuler egbere egbert eggert eggler egglet elbert elburg eleele elegug ellett erbree erguel errett etgert ettutu eubule euller eutere g-tube gbegbe gebbet gebert geegee gegger gelber gelert gelett gelgel geller gerber gerege gereut gergel gerger gerret gertte geruge getter geulle gleere gleter glette glubbe glurge gluter glutte grebel greble greete greger gregge gregre gretel greter grette greuel grubbe grubel gruber grugru grulle gteter gubber gubble gubeer gubgub gubler gueber guebre guegue guerre guetre guggle guggul gugler guglet gulgul guller gullet gurbru gurgel gurgle gurlet gurugu gutlet guttee gutter guttle guttur leberg lebert lebret leeger leegte leelee leerer leetle legger legget leglet legree lerret letter lettre lubber lueger luggee lugger lugulu luguru luller lurgee lurulu lutter luttre r-tree re-let rebble rebell rebtel rebulb rebute reegle reeler reeuel reggel regleg reglet reglue regret regueb reller relleu rereel rerule reteer reteet retell retere retree retret rettel retter rettur retube returu reuele reuere reugle reuler reulle reurge reuter reutte rubbee rubbel rubber rubble rubell rubutu ruelle rugetu rugger ruggle ruller rurutu rutger ruttee rutter ruttle rutube t-tree t-tube teebee teetee teeter telegu telele telete teleut telgte tellee teller tellur telugu terete terrel terrer terret terter tertre teruel tetele tetete tetter teutul trbble trebel treble trebur treete treget tretee trette truble truett trulle tubber tubble tubul- tubule tuelle tugger tuggle tugrug turbel turbet turble turgel turgut turlet turrel turret turtle turtur tururu tutele tuteur tutter tuttle tuttul tuttut u-tube ugurlu ureltu ureter urette urgell urgull utelle uteute