"Had he not resembled my father as he slept, I'd ha' done it."
Aww.
This is key information to show that Duncan would not have been killed if only Lady M had been there: she had the theoretical desire but not the immediate guts to do it. Macbeth, as we see from his "If 'twere done when 'tis done, then 'twere well it were done quickly" speech, lacks the theoretical desire although he has the guts. It is the combination which was deadly for Duncan.
Lady Macbeth was stopped from killing King Duncan herself because she feared for her own conscience and sanity after committing such a ruthless act. Additionally, she was concerned about failing in her plan and facing the consequences, so she persuaded her husband, Macbeth, to carry out the murder instead.
Lady Macbeth talked Macbeth into killing his cousin, King Duncan of Scotland, who was a guest in his house at the time.
The reaction between Lady Macbeth and Macbeth is initially very different after they kill Duncan. Lady Macbeth is enthusiastic but Macbeth regrets his actions.
She talks her husband into killing Duncan.
because king Duncan looked alot like lady Macbeth's father.
by calling him a coward
She plans to get her husband to stab him in his sleep.
After killing Duncan, Macbeth could not sleep. He feels the guilt and is terrified
She was haunted by the experince of killing King Duncan, and commited suicide.
King Duncan was killed by Macbeth, who stabbed him to death while he was sleeping in his chambers in Macbeth's castle. This act was orchestrated by Lady Macbeth and was part of the plan to seize the throne.
He feels traumatised, but he's encouraged by Lady Macbeth and his ambition for power.
Lady macbeth wants macbeth to kill king duncan because she wants to be queen. King duncan has a lot of trust with macbeth so no one will suspect it. And she also persuades him by saying he can be king, and have all this power.
Lady Macbeth is traumatized from the events that followed the killing of Duncan. She is most affected by the blood that was on her hands which she repeatedly washes in her sleep.