b-tree bbbbbb beebee beebem beembe beemer 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 burbet burbur burree burrer burret burutu butere butter butthe ebbert ebbeth eburru eburum eebree embree embrue embute emeere emeter emeute emmert emmett emmure erbree eretum ermthe erreth errett ethere ethete ettutu eutere hebbur hebete heebee heehee heeter hehehe hehheh hemmer hemmet hemure herber herbet herher herme hermeh hermet herrem herter herthe hertme heter- hether hetter heurte heutte htruth hubber hubbub hubert hububb hueber huetre huh-uh humber humhub humhum hummer hummum humure hurrer hurter hurth hurumu huthur huthut hutter m-tree mbembe meerut meeter meetme meetre mehter mehurt mehuru member membre mememe memere merete mereuh mermer mermet merrem merret merter merthe merure meteer meteth mether metrer metrum metter mettet mettur meurte mm-hmm mthree muerte muette muhuhu muhurr muhuru mummer murehe murmur murree murrhe murter mutere muther muthur mutter muttur mutuum muumuu r-tree rebute rehber rehete reheur remeet remete remeue reteer reteet retere reterm rethem rether retree retret retter rettur retube returu reuere reuter reuthe reutte reutum rubbee rubber rubrum rubutu rumber rumbur rumeth rummer rurutu ruther ruttee rutter rutube t-tree t-tube te-hee tebeth teebee teehee teemer teerme teerth teetee teeter teethe tembhu tembre temere terete termeh termer terrer terret terter tertre tetete tethee tether tetteh tetter thebum thehub thehue themer themet therm- therme therub thetee thethe thettu threet threte thrett thrumb thumbe thurte trebur treete trehet tremet tretee trette treuth trueth truett trumbe tubber tumer tummer tumtum turbeh turbet turbhe turmer turmut turret turrum turtur tururu tuteur tuther tutter tuttut tutume u-tube uh-huh um-hum umbuth umreth ureter urette uteute