-tree bbbee be-er beber beche beebe beech beete beeth begee beget begge beher behet berbe berec bereg bereh beret berge bergh berhe berre berte berth betch betee beter bethe betre bett- bette bheer bhtec brece brech breer breet breg- brege bregg brere breth brett brrrr btc-e btech btr-t c-tec ccccc ccett cebec ceber cech ceche cecht ceere cegge cerc- cerce cerec cerer ceret cerge cerre certe cette chech cheer cheet chege chegg chehr chere chert chete cheth chett chher crebe crece creer cregg crete ctree cttee ebber ebbet eberg ebert echte ecthr eeeee eetch egger egret ehret erbbe erber erceg erech erect erege erere erte erter erthe etche etete ether etree etter gberg geber gebet gebre gee-h geech geere geert geete gegge gehee gerbe gerce gerre gerth gertt getee geter gethe gette gheet grebe grece grech greer greet grege gregg grete greth grett grrrr gtech h-e-b he-he hebbe hebe- heber heche hecht hect- hecte heegh heere heete heger hegge heght hehte herce hereg herre herte herth hetch heter hethe hette hgttg hheth hhhhh hrere hthrt htree rebbe rebec rebeg reber rebet recce recet reche recht rect- recte reece reech reege reere reerh reeth regec reger reget regge regtt reher rehet rere- reree reret retch retee reter rethe retrg rette rhett tbtbt teber tebet tecch teche tectb teech teege teeth teght tegre tehee terce teret terge terre tert- tetch teter tethe tetr- tette thebe thec- thect theeb theer thegh thegr ther- there thete theth thre- three thret treer treet treg- trere trete trett ttttt