-tree c-tec ccccc ccett cduce ceded ceder cedex cedr- cedre ceede ceere cerc- cerce cerec cered cerer ceret cerre certe cette crece crede creed creer crete cretu creu- creue creux cruce crude cruet cruex crure ctree cttee cudde curce cured curer curet curre cutcu cutee cuter cutex d-cru ddddd decet decur dedde dedee deder dedur dedut deece deede deere derce derde dered derre derue deter detre dette detur deuce deure deut- drdre dredd drede dreed drere dreux druce drude duded duder duduc duere duerr duete duett dured duree durer duret durex durre durte durtu dutte dxdxd e-dee edder eddre edere edred educe educt eeeee eerde erdec erdre erdut erect erede erere erred errtu erte erter eruct etete etext etree etter etude eturu eucre eurex eurre exced excur exect execx exede exert exred exter extre extue exude exute recce reced recet rect- recte recue recur recut redde reder redex redur redux reece reede reere rerde rere- reree reret reted retee reter retex rette reuer reuet reute rexer rtext rucer ruder ruede ruere ruete rurde rurec ruter rutte ruutu t-rex teder teerd terce teret tereu terex terre tert- teter tetex tetr- tette texed texrd texte treed treer treet trere trete trett treut treux truce trude trued truer truex trute truxe ttttt tucet tuctu tuder tudre tudur turet turre turtu turut tutee tutte tuuru tuxed u-cee udder udert urdee urter uruce urucu urutu uter- utter uttur uturu uuuuu xceed xduce xedre xerte xetec xetex xexeu xexex xtext xtree