-tree c-p-c c-tec ccccc ccett cech ceche cecht ceere cepet cerc- cerce cerec cerer ceret cerre certe cette chech cheep cheer cheet chehr chepe chere cherp chert cheru chete cheth chett cheue chher chueh chuet chupe chupp chur- chure churr churt churu chute cpctc cphpc crece creep creer crepe crept crepu crete cretu creu- creue creup cruce cruet crupe crure cruth cteep ctree cttee cuche cueup cuper cupr- curce curch curer curet curre curup cutch cutcu cutee cuter cuthe cutup eccup echte ecthr eeeee eepee eetch ehret eperc epher epheu epure erech erect erept erere errtu erte erter erthe eruct erupt etche etchu etete ether etree etter eturu eucre eurre h-tcp he-he heche hecht hect- hecte hecup heepe heere heete hehte heper hepet hept- herce herpt herre herte herth hertu herur herut hetch heter hethe hette hetup hetur heuch heuer heure heurt heute hheth hhhhh hrere hrrep hthrt htree httpr hu-pe hucch huche huere huete huhuh hupeh hupet huppe hureh hurre hurtt hurtu hurup hutch hutte huttu hutup huuru p-rep pcept pcert pctct peche peece peere peert peete peeth pepee peppe pept- pepup perce perch perec perer peret perre perte perth peruc perur petch petcu peter petr- petre petru pette petuh petur peuce peure phccc phecc pheer phere phpht phtpp phutu prcht prece prete pruce prute ptech pter- ptere ptprc ptpre ptprh ptprr ptprt ptpru puech puett puhtu pupet puppe purce puree pureh purer purre purte puter putre putt- putte puttu putup re-up recce recep recet reche recht recpt rect- recte recue recur recut reece reech reepe reere reerh reeth reher rehet rehue repec repet reppe reprt reput rere- reree reret retch retee reter rethe rette reuer reuet reute reuth rhett rhppc rucer ruche ruere ruete rueth rupee ruper rurec rutch ruteh ruter ruthe ruthu rutte ruuth ruutu tchuh tecch teche teech teepe teeth teeup tehee tepee tepet tepeu teppu terce teret tereu terre tert- tetch teter tethe tetr- tette teuch teuhe thec- thect theer theeu thepe ther- there therp thete theth theue thre- three threp thret threu thrue thttp thuet thure thurt thuru thute treer treet trepp trept trere trete trett treut truce truch truer trupt trute truth ttttt tucep tucet tuche tucht tuctu tuech tuhte tupee tureh turet turph turre turtu turup turut tutch tutee tutte tuuru u-cee uchee ucheh uchte uchuu uh-ee uh-uh uhecr uhhuh uhuru upc-e upcut upeet upher upper upput upter upthe urech urter urthe uruce urucu urupe urutu uter- uther utter uttur uturu uuuuu