e-four effere effoff effore epopee errour europe eururo feeror feofor ferfer ferrer ferro- ferrup ferrur foerre foofoo foofur fopper forrer forure foufou fourer fourof fourou freeof freepr freeup frefre freure froofe fruupp fufore furfur furore furour furrer furrfu oferre ofpoor oooooo orrour ouerre peepee peeper peerer peffer pepero pepper perere peroff peroor perore perper perree perrou poeure poffer poofup pooper poopoo poorer pop-up popfor popoff popopo poporo popper poppop pouere pouffe poupee poupou pouppe pourer pppppp pre-op preeue prefer preffe prefou preore preoue preue- profer proffe profor profre profur proper propre propup propur puerer puffer puffup purpre purpur purree purrer reefer reeffe reeper refeff repope repour repper repref repure repuru reroof reuere reuour roeper roofer roopee rooper rouffe roupee rouper ruffer uppoor upprop urouer uroure uruffe uruppu