 Studying Macbeth, here's how you can analyse how he plots to kill Banquo in Act 3, Scene 1. Macbeth speaks in Sibylans hair to invite Banquo to his crowning. We can see that he's trying to be really friendly to Banquo. Banquo speaks formally, calling him your highness, saying that he definitely will come because he's now his new king. Banquo then leaves and Macbeth reflects to be thus as nothing. Illiteration is used here to show he still feels insecure because Banquo is alive. He can't secure his position as king until he dies. He says he fears Banquo because he is really wise and brave. He remembers the witch's prophecies and this metaphor shows that he's really jealous that Banquo's children will be kings. Macbeth then calls in two murderers and he uses hyperforo hair to tell them that Banquo made their lives hell so they should kill him. Macbeth then uses assonance of e hair to tell the murderers that he's going to look after them if they make sure that Banquo is dead. Macbeth then emphatically reminds them that Banquo is both their enemy as well as his enemy.