e-type effere effete efreet efter- errett etrepy eyepet eyerer f-type ferfer ferrer ferret fertee ferter fetter feyffe freepr freety frefre frerry frette fretty fterer fterre p-type peepee peeper peerer peeter peetre peffer pepper perere pereye perper perpet perree perret perrey perrye perter pertre peteet petree petrer petrey petter pettet petyte pfyffe pppppp prefer prefet preffe preppy preter pretre prette pretty preyer pterry pyerre pyret- pyrrey pyttye r-tree r-type re-try reefer reeffe reeper reetry refeet refeff refert refete refret refter repete repper repref rerefy reteer reteet retere retree retret retter retype reyter t-tree t-type teepee teetee teeter tepefy tepper terete terper terrer terret terrye terter tertre tertry tetete tetter tettey treete trefet trefte treppe tretee trette tretty treyfe treyte trypet tryppe trytry tyrret yeffte yerere yetter yferre