Next: Macbeth, Act 5, Scene 1 Explanatory Notes for Act 4, Scene 3 From Macbeth.Ed. After retiring to bed, Macbeth appears to have some regrets about Duncan and Banquo's murders, but not enough to prevent him from committing murder again to protect his throne. Though they apparently have a common cause—overthrowing Macbeth—they are … MACBETH Which of you have done this? In Act 3 scene 4 Shakespeare makes the reader aware that Macbeth is still worried about Banqou’s son Fleance and how he is still a major threat to Macbeth’s title as King of Scotland.... Should be a qoute with charactarisation or imagery Ive left my book and jotters in class (N).