-tree c-p-c c-tec ccccc ccett ccnet cecun ceene ceere cence ceneu cenpn cenpt cent- centr cepet cerc- cerce cerec ceren cerer ceret cerne cerre certe ceten cette cetun cneru cnnnn cntrc cpctc crece creen creep creer cren- crepe crept crepu crete cretu creu- creue creup crnce crnec crner cruce cruet crune crunt crupe crure cteep cten- ctene ctree cttee cueup cunne cunt- cunut cuper cupr- curce curer curet curre curup cutcu cutee cuter cutup e-ten eccen eccup eeeee eence eener eenet eepee eeten encre encup encur enent enete ennet enper enpeu enrut enten enter entre enure enurn epeen epene eperc epure erect ereen erept erere ernen ernet errtu erte erter ertun eruct erupt etern etete etnre etree etrun etten etter eturu eucen eucre eunet eupen eurre n-p-n ncree necr- nect- neece neere neetu nente neper neppe nepte neree neret nerre nerte nerur neten netne netpc nette neuen neuer neueu neune neur- neure ntete nu-nu nucet nunce nunet nunun nupen nupur nurce nure- nurun nutec nutte p-n-p p-rep pcept pcert pctct peece peene peent peere peert peete pence pene- pener penne penre pent- pente pentu penup penur pepee peppe pept- pepup perce perec peren perer peret perne pernt perre perte peruc perun perur petcu peter petr- petre petru pette petun petur peuce peure pnetc pptnt prece preen prene prent prepn prete prntr pruce pruen prun- prune prunt prute pter- ptere ptprc ptpre ptprn ptprr ptprt ptpru puett punce punct punee punne punte pupet puppe purce puree puren purer purre purte puten puter putre putt- putte puttu putun putup re-up recce recen recep recet recpt rect- recte recue recur recut reece reene reepe reere rence renee rener renet renne rente repec repen repet reppe reprt repun reput rere- reree reret rerun retee reter retnr rette reuen reuer reuet reune reute rnpep rtenn rucer ruere ruete rueun runcu runec runer runet runne runte runup rupee ruper rurec ruten ruter rutte ruutu t-nut tecn- tecnu teepe teeup tencc tence tenen tener tenet teneu tenne tennu tenpn tente tenue tenup tenur tepee tepet tepeu teppu tepun terce teret tereu terne terre tert- teten teter tetr- tette tntnt treen treer treet trenc trene trent trepp trept trere trete trett treut truce truer trupt trute ttnet ttttt tucep tucet tuctu tuene tune- tuner tunne tupee turen turet turn- turne turnp turnt turnu turre turtu turup turut tutee tutte tutun tuuru u-cee uncup uncut unerp unete unnet unnun unnur unnut unpen unpeu unput unrep unrun unten unter unurn upc-e upcut upeet upenn uppen upper upput uprun upter urent urter uruce urucu urupe urutu utenn uter- utter uttur uturn uturu uunet uuuuu