-tree c-tec ccccc ccett cech ceche cecht ceere cefcu cerc- cerce cerec cerer ceret cerre certe cette cfu-e chech cheer cheet chefe cheff chehr chere chert cheru chete cheth chett cheue chher chueh chuet chuff chur- chure churr churt churu chute crece creer creft crete cretu creu- creue cruce cruet crufe cruft crure cruth ctree cttee cuche cufeu cuffe cufre curce curch curer curet curre cutch cutcu cutee cuter cuthe echte ectfe ecthr eeeee eetch ef-tu efere efetf effer effet efter efuru efutu ehret erech erect erere errtu erte erter erthe eruct etche etchu etete ether etree etter eturu eucre eurre feche fecht feere feher ferce ferch feret ferr- ferre ferte ferth fetch feteh feter fette feuer feute freeh freer freet frere frett freur fruct frute ftrtt fu-fu fuchu furch furth futuh futur he-he heche hecht hect- hecte heere heete hefer heffe hefte hehte herce herre herte herth hertu herur herut hetch heter hethe hette hetur heuch heuer heure heurt heute hheth hhfce hhhhh hrere hthrt htree hucch huche huere huete huffe huhuh hureh hurre hurtt hurtu hutch hutte huttu huuru recce recet reche recht rect- recte recue recur recut reece reech reefe reeft reere reerh reeth refer refet reffe refut reher rehet rehue rere- reree reret retch retee reter rethe rette reuer reuet reute reuth rhett rucer ruche ruere ruete rueth ruffe rurec rutch ruteh ruter ruthe ruthu rutte ruuth ruutu tchuh tecch teche teech teeth tefe tehee terce teret tereu terre tert- tetch teter tethe tetr- tette teuch teuhe thec- thect theef theer theeu theft ther- there therf thete theth theue thre- three thref thret threu thrue thuet thuff thure thurf thurt thuru thute treer treet trefe treff trere trete trett treut truce truch truer truff trute truth ttttt tucet tuche tucht tuctu tuech tuffe tufte tuhte tureh turet turre turtu turut tutch tutee tutte tuuru u-cee uchee ucheh uchte uchuu ufere uh-ee uh-uh uhecr uhhuh uhuru urech urter urthe uruce urucu urutu uter- uther utter uttur uturu uuuuu