cert-ee cfcp-fm cfcr-fm cfep-fm cfet-fm cfff-fm cffm-fm cfmc-fm cfmf-fm cfmm-fm cfmp-fm cfpe-fm cfpp-fm cfrc-fm cfrm-fm cfrt-fm creeper cremett e-meter eemmeer erecter feetper fermete ferrere freeppp freeter fretter meerpet meffert memmert mereret merrett mertert metepec metreme metrete pee-pee perceep percept perempt peretre perfect permet perrett pfeffer precept preempt prefect preferr preffer premeet premere prepere prepper prerept preter- preterm r-meter recepte reerect referee referer refrete remerce reperte repreef reprefe repreme rerefer reteere reterre retrete rettert tec-mec tec-tec tempere tempete tempter terere terreer terrere tettete treetee tremper trepett trettre