-tree c-tec ccccc ccett ccnet cecun ceene ceere cence ceneu cent- centr cerc- cerce cerec ceren cerer ceret cerne cerre certe ceten cette cetun cneru cnnnn cntrc crece creen creer cren- crete cretu creu- creue crnce crnec crner cruce cruet crune crunt crure cten- ctene ctree cttee cunne cunt- cunut curce curer curet curre cutcu cutee cuter e-ten eccen eeeee eence eener eenet eeten encre encur enent enete ennet enrut enten enter entre enure enurn erect ereen erere ernen ernet errtu erte erter ertun eruct etern etete etnre etree etrun etten etter eturu eucen eucre eunet eurre ncree necr- nect- neece neere neetu nente neree neret nerre nerte nerur neten netne nette neuen neuer neueu neune neur- neure ntete nu-nu nucet nunce nunet nunun nurce nure- nurun nutec nutte recce recen recet rect- recte recue recur recut reece reene reere rence renee rener renet renne rente rere- reree reret rerun retee reter retnr rette reuen reuer reuet reune reute rtenn rucer ruere ruete rueun runcu runec runer runet runne runte rurec ruten ruter rutte ruutu t-nut tecn- tecnu tencc tence tenen tener tenet teneu tenne tennu tente tenue tenur terce teret tereu terne terre tert- teten teter tetr- tette tntnt treen treer treet trenc trene trent trere trete trett treut truce truer trute ttnet ttttt tucet tuctu tuene tune- tuner tunne turen turet turn- turne turnt turnu turre turtu turut tutee tutte tutun tuuru u-cee uncut unete unnet unnun unnur unnut unrun unten unter unurn urent urter uruce urucu urutu utenn uter- utter uttur uturn uturu uunet uuuuu