Final answer:
Paris believes Romeo's intentions at Juliet's tomb in Act 5 of 'Romeo and Juliet' are to desecrate the graves or dishonor Juliet's corpse, leading to a deadly clash.
Step-by-step explanation:
In Act 5 of Shakespeare's Romeo and Juliet, Paris believes that Romeo's intentions for coming to Juliet's tomb are malevolent. Paris thinks that Romeo has come to commit vile acts upon the bodies of those interred there, including desecrating Juliet's grave or dishonoring her corpse. This misunderstanding leads to the fatal encounter between Paris and Romeo, where Paris is killed, allowing the tragic climax of the play to unfold.