-tree c-tec ccccc ccett ceere cegge cerc- cerce cerec cerer ceret cerge cerke cerre certe cette crece creek creer cregg creke crete cretu creu- creue cruce cruck cruet cruke crure ctree cttee cucuk cuker curce curer curet curre curug cutcu cutee cuter ecker eecke eeeee egger egrek egret ekker ekuku ekuru erceg erect erege erere erkec errtu erte erter ertug eruct eruke eteke etete etree etrek etter eturu eucre eurre geere geert geete gegge gerce gerke gerre gertt getee geter gette getuk grece grecu greek greer greet grege gregg grete grett greut grgur grrrr grure gruut gtk-- guce gucer guere gurge gurke gurre gurur gutte k-gee k-ute kecer keere keget kekec kerek keret kergu kerre kertu ketek keter kette kreek kreke krete kreuk kruge kucer kucuk kugur kukec kukur kurek kurku kurre kurte kuruc kuruk kutte kuttu kutur recce recet recke rect- recte recue recur recut reece reege reere regec reger reget regge regtt regur regut rekke rere- reree reret retee reter retrg rette reuer reuet reute rt-rk rucer ruegg ruere ruete ruger ruget rugge rukke rurec ruter rutte ruutu tcutk teege tegre teguc tegur teket tekke terce terek teret tereu terge tergu terre tert- teter tetr- tette teuge treck treer treet treg- trere trete trett treut truce truck truer trugg truke trute ttttt tucet tucke tuctu tugce tukur turck turek turet turku turre turtu turut tutee tutku tutte tuuru u-cee uceku ugrug ukeke ukert ukuug urger urgut urker urkut urter uruce urucu urutu uter- utter uttur uturu uuuuu