b-reel bbbbbb beblur beebee beeler beeper behele behell behelp behler belber beller belleu bellue belper belpre belull berbee berber bereel berere berrer berube beurre bleere blublu blurre brebel breere breuer brubru bruel brulee bruree bubber bubble bubele bububu bueler buhler buhrer bulbel bulbul bull-e bullee bulleh buller burble burbur burell burhel burler burpee burper burple burree burrel burrer burrup eberle eburru eebree eeuler ehrler eleele elphel ephebe ephree erbree eubule euller euphue hebbel hebbur heebee heehee heeler heerle hehehe hehheh helbe helbeh helele helleh heller hellue helpee helper helpup hepler hepper hepple herbel herber herher herple hubber hubble hubbub hubler hububb hueber huh-uh huller hullur huluhu hupple hurler hurple hurrer leelee leeper leerer lehrer lepere lepper lerrup lubber luller lurulu pebble peeble peelee peeler peelup peepee peeper peeple peeplu peepul peerer peerle pelele peller pelure pepper perell perere perleb perlee perper perree perrhe perule phleb- phlppl pleur- pleure plurel pppppp preble preeue prelle prepub preue- pubber pubble puerer puller pullup pullur pulper purell purler purple purpre purpur purree purrer rebble rebell rebulb reeler reeper reeuel rehber reheel reheur reller relleu repele repper repple repull repulp repure repuru rereel rerule reuele reuere reuler reulle rub-up rubbee rubbel rubber rubble rubell ruelle ruller uh-huh ulehle uphere uphurl urepel uruppu