1. "Thane of Cawdor": The witches greet Macbeth as "Thane of Cawdor," a title he doesn't yet possess. This prophesy comes true when the current Thane of Cawdor is executed, and Macbeth is bestowed the title by King Duncan.
2. "King Hereafter": The witches further prophesy that Macbeth will become king. This prediction feeds Macbeth's ambition and drives him to murder King Duncan and seize the throne. However, the prophecy is ambiguous and doesn't specify how or when Macbeth will become king.
3. "None of Woman Born Shall Harm Macbeth": The witches proclaim that no one born of a woman can harm Macbeth. This prophesy gives him a false sense of security and leads him to underestimate his enemies. However, it is ultimately proven false when Macduff, who was born by cesarean section, kills Macbeth.