In the soliloquy that opens scene 1 what does banquo reveal he knows about Macbeth Banquo decide to do?

In the soliloquy that opens Scene 3, act I, Banquo expresses concern and suspicion about Macbeth's sudden rise to power. He reflects on the witches' prophecies and wonders whether Macbeth has committed acts of evil to achieve his ambitions. Banquo worries about the fate of Scotland and his family, as he fears Macbeth's growing tyranny and the possibility of his offspring inheriting the throne through foul play.

Banquo decides to keep a close eye on Macbeth and investigate any suspicious activities. He resolves to remain loyal to King Duncan and to support him in any potential conflicts with Macbeth. Banquo's soliloquy reveals his inner thoughts, conflicts, and determination to uncover the truth about Macbeth and his actions.