-tree c-p-c c-tec ccccc ccett ceded ceder cedr- cedre ceede ceere cepet cerc- cerce cerec cered cerer ceret cerre certe cetpd cette cpcfc cpctc crece crede creed creep creer creft crepe crept crete cteep ctree cttee ddddd decet dedde dedee deder deece deede deefe deeff deepc deepe deepp deere defce defed defer defet deffe depce derce derde dered derpt derre deter detre dette drdre dredd drede dreed dreep dreff dreft drepe drere e-dee ectfe edder eddre edere edred eeeee eefde eeped eepee eerde efere efetf effed effer effet efter eperc eptfe erdec erdre erect erede erept erere erfde erred erte erter etete etree etter fedde fedee feder feere ferce ferde fered feret ferr- ferre ferte feted feter fette frcpc frede freed freep freer freet frere frett ftrtt p-rep pcept pcert pctct pedee peece peere peert peete pepee peppe pept- perce perde perec perer peret perre perte peter petr- petre pette prece prede preef preff prepd prete pter- ptere ptprc ptprd ptpre ptprf ptprr ptprt recce reced recep recet recpt rect- recte redde reder reece reede reefe reeft reepe reere refed refer refet reffe repec repet reppe reprt reptd rerde rere- reree reret reted retee reter rette rperf tcpdf tedef teder teepe teerd tefe tepee tepet terce teret terre tert- teter tetr- tette treed treer treet trefe treff trepp trept trere trete trett ttttt