I still have some doubts about a summary I made of Macbeth's plot. I hope you can have a look at it, too.

I included various alternatives. Please, tell me if they are all possible.

1)The play opens with the news that Macbeth has succeeded in defending Scotland from an invasion by the Norwegians.
2) While returning from his victorious battle, Macbeth and his friend Banquo meet the three witches. They predict /prophesy (??) that Macbeth would be Thane of Cadwor and king of Scotland. (Is it possible to say: they told Macbeth that he would be Thane ...)
3) They told B that he would be less than M, but more than M. He would be less lucky but more fortunate. He would never be king but his children’s children would be kings/would have the throne of Scotland.
4) They told him that a line of kings would come from him/would succeed him
He would father a line of kings.
M was very surprised at the three witches’ prediction and he couldn’t stop thinking about it.
5) He started to become more and more ambitious and he got excited at (?) the idea of becoming king.
Later Macbeth and Banquo meet the King’s messenger that tells Macbeth that the king has decided to reward him with the title of Thane of Cawdor. 6) Macbeth invites the king to his castle and writes a letter to his wife to inform her.
7) In her opinion, her husband needs her help to satisfy his ambition. As a matter of fact, she is tired of being just lady Macbeth: she wants to become queen. She carries out a plan to kill Duncan.
8)She plans to drug the soldiers guarding the king and then blame them for the king’s murder.Though Macbeth is frightened of his wife’s plan to kill the king, he accepts it.

1) The play opens with the news that Macbeth has successfully defended Scotland from an invasion by the Norwegians. (Correct)

2) While returning from his victorious battle, Macbeth and his friend Banquo encounter three witches who prophesy that Macbeth will become the Thane of Cawdor and eventually, the King of Scotland. (Instead of saying "they told Macbeth," it is more accurate to say "they prophesied" or "they predicted.")

3) The witches also inform Banquo that he will be lesser than Macbeth but greater, not as fortunate but more so. They tell him that he will never be king, but his descendants will occupy the throne of Scotland. (This sentence can be revised for better clarity: "They told Banquo that he would be less fortunate than Macbeth but greater in some other way. Although he would not become a king himself, his children's children would inherit the throne of Scotland.")

4) The witches' prophecy suggests that Macbeth will father a line of kings, indicating that his descendants will also rule.

5) The prophecy greatly intrigues and excites Macbeth, fueling his ambition to become king. (Instead of saying "got excited at," it is more accurate to say "became excited by" or "became enthralled by.")

6) Later, Macbeth and Banquo encounter a messenger from the King who informs Macbeth of his newly acquired title as the Thane of Cawdor. In response, Macbeth invites the King to his castle and writes a letter to his wife, Lady Macbeth, informing her of the news.

7) Lady Macbeth recognizes her husband's ambition and believes that she must help him achieve it. Driven by her desire to become queen, she devises a plan to kill King Duncan. ("In her opinion" is not necessary as it is implied by her actions.)

8) Lady Macbeth's plan involves drugging the King's guards and framing them for his murder. Although Macbeth is initially frightened by his wife's plan, he eventually embraces it and agrees to carry out the assassination.