One of the main developing themes is insanity. Macbeth constantly goes insane thinking that he see's Banquo's ghost and starts talking to him. He thinks that everyone is against him and are out to get his crown.
RL.4 Analyze the cumulative impact of specific word choices on meaning Analyze the,cumulative impact of specific word choices on tone.
"Thou canst not say I did it. Never shake thy glory locks at me"(2.4.50-51).
"Then he is dead?"(5.8.44).
"Ay, and brought off the field. Your cause of sorrow must not be measured by his worth, for then it hath no end"(5.8.45-47)