b-tree bbbbbb bebump beebee beebem beembe beemer beeper beerme beeter behete behter bemeet bemete bemute berbee berber bereet berere berhet bermet berrer berret bertem berthe bertre berube beteem betere betete betrue bettee better betutu beumer beurre breere breeth brehme bremer brethe brette breuer brubru bruree brutum bthree bubber bububu buhrer bumbee bummer bumpee bumper burbet burbur burpee burper burree burrer burret burrup burutu butere butter butthe ebbert ebbeth eburru eburum eebree embree embrue embute emeere emeter emeute emmert emmett emmure empure ephebe ephete ephree ephrem erbree eretum ermthe erreth errett ethere ethete ettutu euphem euphue eutere hebbur hebete heebee heehee heeter hehehe hehheh hemmer hemmet hempur hemure hepper heptet herber herbet herher herme hermeh hermet herrem herter herthe hertme heter- hether hetter heurte heutte hrrmph htruth hubber hubbub hubert hububb hueber huetre huh-uh humber humhub humhum hummer hummum humper humure hurrer hurter hurth hurumu huthur huthut hutter m-tree mbembe meerut meeter meetme meetre meetup mehter mehurt mehuru member membre mememe memere merete mereuh mermer mermet merrem merret merter merthe merupu merure meteer meteth mether metrer metrum metter mettet mettur metump meurte mm-hmm mp-pet mthree muerte muette muhuhu muhurr muhuru mummer mumper muppet murehe murmur murree murrhe murter mutere muther muthur mutter muttur mutuum muumuu pberet pebete peepee peeper peerer peeter peetre pember pempem pepper perere peretu permue perper perpet perree perret perrhe perter pertre peteet peteru pether petree petrem petrer petter pettet pppppp preeue prehem prepme prepub preter prethe pretre prette preue- pruett pubber puerer puhret pummet pumpee pumper pumpet pumpup puppet pupput purete purmer purpre purpur purree purrer put-up puther puthur putput putrer puttee putter putthe puttur puture r-tree rebute reeper rehber rehete reheur remeet remete remeue repete repmet repper repump repure repuru repute reteer reteet retere reterm rethem rether retree retret retter rettur retube returu reuere reuter reuthe reutte reutum rub-up rubbee rubber rubrum rubutu rumber rumbur rumeth rummer rumper rupert rurutu ruther ruttee rutter rutube t-tree t-tube te-hee tebeth teebee teehee teemer teepee teerme teerpu teerth teetee teeter teethe tembhu tembre temere tempeh temper tempre tempur tepper terete termeh termer terper terrer terret terter tertre tetete tethee tether tetteh tetter thebum thehub thehue themer themet thepru therm- therme therub thetee thethe thettu threep threet threpe threte thrett thrumb thrump thrupp thumbe thurte trebur treete trehet tremet trempe treppe tretee trette treuth trueth truett trueup trumbe trumph tubber tumer tummer tumtum tuppee tupper turbeh turbet turbhe turmer turmut turret turrum turtur tururu tuteur tuther tutter tuttut tutume u-tube uh-huh um-hum umbuth umreth up-put uphere ureter urette urpeth uruppu uteute