-tree bbbee be-er bebel beber beebe beele beete beeth beeut beher behet behle behue belee belet bellb belle belue belur belut berbe bereh berel beret berhe berle berre berru berte berth betee betel beter bethe betle betre bett- bette betul beuer beule beure beute beuth bheel bheer bhele bleer bleet blehr blere blete bleue bluer bluet blurb blure blurr blurt bluth brebu breel breer breet brell brere breth brett breu- brrrr bruer bruet bruhl brule brull brute btr-t bubbe buber buble buell buhle bulb- bull- bulle bulul bulut bureh burel buret burle burru burte burtt burut buter buthe butle butte butut ebber ebbet ebble ebell eberl ebert eblul ebull ebure eeeee eeler ehret eleet elele eleut ellel eller ellet ellul elulu eluru elute erbbe erber erere errtu erte ertel erter erthe etete ethel ether etree ettel etter ettle eturu euell euhel euler eurel eurre h-e-b he-he hebbe hebe- hebel heber heble heele heere heete hehte heler helle helre helte helth helue herel herle herre herte herth hertl hertu herur herut heter hethe hette hetur heuer heule heure heurt heute hheth hhhhh hrere hthrt htree hubbe hubel huber hubur huere huete huhuh huleh huler hulle hurbe hureh hurel hurll hurre hurtt hurtu hutte huttu huuru lebel leber lebet leell leere leert lehel lehre leleu lelle lerer letbe lethe letre lette letur leuth lubbe luber luble lubur luhte luleh lulle lulte lulul lurer lurue lute- luter lutte rebbe rebel reber rebet rebut reere reerh reeth reher rehet rehue relee relet relte relue rere- reree reret retee retel reter rethe rette reuel reuer reuet reule reute reuth rhett rubee rubel ruber ruble ruehl ruele ruell ruere ruete rueth ruhle ruhub ruler ruteh ruter ruthe ruthu rutle rutte rutul ruule ruuth ruutu t-hub tbtbt tbutt teber tebet teele teell teeth tehee tele- teler teleu tell- telle teret tereu terre tert- tetel teter tethe tetle tetr- tette teuhe thebe theeb theel theer theeu thele ther- there therl thete theth theue thre- three thret threu thrub thrue thuet thule thure thurl thurt thuru thute tlell tlett tllbr treer treet trele trere trete trett treut trubu truel truer trule trull trute truth ttttt tuber tubul tuell tuelt tuhte tulet tulle turbe turbt tureh turel turet turle turre turtu turul turut tutee tutel tutle tutte tuuru ubble uber- uh-ee uh-uh uhhuh uhler uhuru ullet ullur ultre ululu uluru urelu urtel urter urthe urtlu urubu urutu uter- uthel uther utter uttur utube uturu uuuuu