perpendicular axes perpendicular bisector perpendicular direction perpendicular directions perpendicular gothic perpendicular line perpendicular lines perpendicular planes perpendicular style perpendicular to axis perpendicular to each other perpendicular to it perpendicular to one perpendicular to the axis perpendicular to the base perpendicular to the central perpendicular to the direction perpendicular to the first perpendicular to the floor perpendicular to the ground perpendicular to the longitudinal perpendicular to the longitudinal axis perpendicular to the plane perpendicular to the surface perpendicularly perpetrate perpetrated perpetrating perpetrator perpetrator of the crime perpetrators perpetrators and victims perpetrators must perpetrators of crimes perpetrators of domestic perpetrators of human rights violations perpetrators of the attack perpetrators of these crimes perpetrators of this crime perpetrators of violence perpetrators to justice perpetrators will perpetua perpetual perpetual adoration perpetual calendar perpetual care perpetual change perpetual energy perpetual evolution perpetual help perpetual inventory perpetual license perpetual light perpetual motion perpetual motion machine perpetual movement perpetual peace perpetual profession perpetual state perpetual virginity perpetual vows perpetual war perpetually perpetuate perpetuate it perpetuate itself perpetuated perpetuates perpetuates it perpetuates itself perpetuates the cycle perpetuating perpetuation perpetuity perpetuum perphenazine perpignan perplex perplexed perplexed me perplexes perplexing perplexities perplexity perps perquisites perrache perrault perreau perreault perrelet perret perrette perriand perrie perrier perrin perrine