-tree bbbee be-er bebel beber beebe beele beene beete belee belen belet bellb belle bene- benet benne berbe berel beren beret berle berne bernt berre berte betee betel beten beter betle betne betre bett- bette bleen bleer bleet blent blere blete breel breen breer breet brell brene brenn brent brere brett brrrr btr-t e-ten ebber ebbet ebble ebell ebene eberl ebern ebert ebner eeeee eeler eener eenet eeten elben eleet elele elene ellel ellen eller ellet elren elten enent enete enlen ennet entel enten enter entre erbbe erben erber ereen erere erlen ernen ernet ernle erte ertel erter etern etete etnre etree ettel etten etter ettle lebel leben leber lebet leell leere leert lelle lenne lente leren lerer lerne letbe leten letre lette nbtel nebel neber nebet neble neele neere nelle nente neree neret nerre nerte neten netle netne nette nlnet nnebe ntete ntlet rebbe rebel reber rebet reene reere relee relet relte renee rener renet renne rente rere- reree reret retee retel reter retnr rette rtenn tbtbt teber tebet teele teell tele- telen teler tell- telle tenel tenen tener tenet tenlb tenne tente teret terne terre tert- tetel teten teter tetle tetr- tette tlell tlett tllbr tllnn tntnt treen treer treet trele trene trent trere trete trett ttnet ttttt