b-tree bbbbbb bebite beebee beeter behete behite behter beiber beirut berbee berber bereet berere berhet berith berrer berret berrie berthe bertie bertre berube beruri betere betete betire betrue bettee better bettie betutu beurre bibber bibiri bibiru bieber bierut biheet biribi birthe birute biteit bitier bitter bittie bittur biuret breere breeth breite brethe brette breuer bribe- bribee briber bribir bribri brubru bruree brutii brutti bthree bubber bububu buhrer burbet burbur bureit burier buriti burree burrer burret burrie bururi burutu butere butter butthe buttie buttir ebbert ebbeth ebr-ii ebrie eburru eebree eerier eibert either erbree erebti erreth errett ethere ethete ethier ettutu euerie eurite eutere hebbur hebete heebee heebie heehee heeter hehehe hehheh heibri heirie herber herbet herbie herbri hereti herher herier herire herrie herter herthe hertie heter- hether hetire hetter heurte heutte hibhib hierer hirter hither hithte hitite hittee hitter hitthe htruth hubber hubbub hubert hububb hueber huetre huh-uh huite huitre hurrer hurter hurth huthur huthut hutter i-bere i-bete i-bure i-tree iherir ihitit irrite itheru ittiri iturbe iturbi r-tree rebbit rebite rebuit rebute rehber rehete reheur rehire reiber reiter reteer reteet retere rether retire retree retret retter rettur retube returu reueir reuere reuire reuter reuthe reutte ribber ribbet ribbie ribbit ribibe ribier rieber rieter riette rietti rither rititi ritter riuere rubbee rubber rubbie rubier rubite rubrie rubutu ruethi ruhubi rui-be ruiter rurutu ruther ruthie ruttee rutter rutube t-tree t-tube te-hee te-uri tebbit tebeth teebee teehee teerth teetee teeter teethe tehiri tehuti teirei teitur terete teribe terihi terrer terret terrie territ terter tertre tetete tethee tether tetteh tetter thebit thehub thehue theire therei therhi theri- therub thetee thethe thettu thibet thibie thiete thirre thithi threet threit threte thrett thurii thurte thutie tibbit tiber- tibere tiberi tibert tibeti tibiri tibrie tierer tieret tiete tiethe tietie tieute tireth tirhut tirret tirrit titbit tither titibu titiri tittee titter tittie trebur treete trehet tretee tretie trette treuth tribit tribut trieth triibe triter trueth truett truite truitt tubber tubbie tuhuti tuiuti turbeh turbet turbhe turbit turret turtur tururu tuteur tuther tutter tuttut u-tube ubuthi uh-huh ureter urette urtite uteute uthiru utrubi