-tree c-p-c c-tec ccccc ccett cecyt ceere cepet cerc- cerce cerec cerer ceret cerre certe certy ceryx cette cetty cexty cpctc crece crecy creep creer crepe crept crepy crete cryer crypt cteep ctree cttee cyete cypre cyrt- cytec cytee cytrx cytte cytyc eeeee eepee eperc erect erept erere errey erte erter etete etext etree etter etype excpt exect execx exept exert exper exptr exter extre extry eyere eyrer p-rep pcept pcert pctct peece peepy peere peert peery peete pepee peppe peppy pept- perce percy perec perer peret perre perry perte perty peryr peter petey petr- petre petry pette petty petyt pexec peyce peyer peyet peyre pprey prece precy prete prety prexy preye pryce pryer pter- ptere ptprc ptpre ptprr ptprt pyece pyere pyper pyppe pyr-t pyree pyrex pyrre pyrye pytec pytee pytte pytye recce reccy recep recet recpt recry rect- recte recyt reece reepe reere repec repet reppe reprt repry repyt rere- reree reret retee reter retex retry rette rexer reyte rpety rtext rytte ryyty t-rex teepe teety tepee tepet terce teret terex terre terry tert- teter tetex tetr- tette tetty texte teyre treer treet treey trepp trept trere trete trett trety trexy treye trxye tryce tryer tryte ttttt ttype tyere typec typee typer typex typey tyree tyrer tyret tytte tyxte xerte xetec xetex xexex xpect xtext xtree ye-ye yeere yeter yette yeyre ytter yyete