-tree bbbee be-er beber beebe beene beete beeth behen beher behet bene- benet benne berbe bereh beren beret berhe berne bernt berre berte berth betee beten beter bethe betne betre bett- bette bheen bheer breen breer breet brene brenn brent brere breth brett brrrr btr-t e-ten ebber ebbet ebene ebern ebert ebneh ebner eeeee eener eenet eeten ehnen ehren ehret enent enete enhet ennet enten enter enthe entre erbbe erben erber ereen erere ernen ernet erte erter erthe etern etete ethen ether ethn- etnre etree etten etter h-e-b h-net he-he hebbe hebe- heben heber heene heere heern heete hehte henen henne hente heren herne herre herte herth heter hethe hette hheth hhhhh hrere hthrt htree neber nebet neere neheb neher neneh nente neree neret nerre nerte neten nethe netne nette nnebe ntete rebbe reber rebet reene reere reerh reeth reher rehet renee rener renet renne rente rere- reree reret retee reter rethe retnr rette rheen rhene rhett rhnet rtenn tbtbt teber tebet teeth tehee tenen tener tenet tenne tente tenth teret terne terre tert- teten teter tethe tetr- tette thebe theeb theer thene ther- there thern thete theth thre- three thret tntnt treen treer treet trene trent trere trete trett ttnet ttttt