-tree bbbee be-er bebel beber beebe beeft beele beete beeth beeut beffe befur beher behet behle behue behuf belee belef 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 bleft blehr blere blete bleue bluer bluet bluff blufr bluft blurb blure blurr blurt bluth brebu breef breel breer breet brell brere breth brett breu- brrrr bruer bruet bruff bruhl brule brull brute btr-t bubbe buber buble buell bufet buffe bufle 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 ef-tu efere efetf effer effet eftel efter efuru efutu 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 febel feble febre feele feere feher fehrl felet felle felte feltt ferel feret ferle ferr- ferre ferte ferth feteh fetel feter fette feuer feule feute fleer fleet flere flert flete flett fleur fluff fluht flurb flure flurr flurt flute freeh freel freer freet frere frett freur frute ft-lb fthfl ftlee ftrtt fu-fu fuhel fulbe fulle fullf fulth furel furth futuh futur h-e-b he-he hebbe hebe- hebel heber heble heele heere heete hefer heffe hefte 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 hfelt hheth hhhhh hrere hthrt htree hubbe hubel huber hubur huere huete hufel huffe huhuh huleh huler hulle hurbe hureh hurel hurll hurre hurtt hurtu hutte huttu huuru lebel leber lebet leell leere leert lefeu leffe leftb leful lehel lehre leleu lelle lerer letbe lethe letre lette letur leuth lubbe luber luble lubur lufre lufte luhte luleh lulle lulte lulul lurer lurue lute- luter lutte rebbe rebel reber rebet rebut reefe reeft reere reerh reeth refel refer refet reffe refut 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 ruffe ruhle ruhub ruler ruteh ruter ruthe ruthu rutle rutte rutul ruule ruuth ruutu t-hub tbtbt tbutt teber tebet teele teell teeth tefe tehee tele- teler teleu tell- telle teret tereu terre tert- tetel teter tethe tetle tetr- tette teuhe thebe theeb theef theel theer theeu theft thele ther- there therf therl thete theth theue thre- three thref thret threu thrub thrue thuet thuff thule thure thurf thurl thurt thuru thute tlell tlett tllbr treer treet trefe treff trele trere trete trett treut trubu truel truer truff trule trull trute truth ttttt tuber tubul tuelf tuell tuelt tuffe tufte tuhte tulet tulle turbe turbt tureh turel turet turle turre turtu turul turut tutee tutel tutle tutte tuuru ubble uber- uelfe ufere 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