Insofar as they are prophecies ("Beware Macduff" is a warning, not a prophecy), they all come true, although not all during the course of the play. Banquo's descendants will eventually become kings of Scotland, but many years later. (Over 300 years later, historically.)
There were two prophecies which Macbeth took to be guarantees that he could not be defeated. One was that he would never be vanquished until Birnam Wood came to Dunsinane. This seems to be impossible, but Malcolm's army used boughs of the trees of Birnam to disguise themselves as they approached Dunsinane, so at least a part of Birnam did come to Dunsinane. The other prophecy said that no-one born of woman could harm him. This also seems like a guarantee of safety, except that "born" can be taken to mean born naturally and not born by C-section as Macduff was.
Basically, Macbeth made a mistake in relying on the witches, whose promises sound like the promises of an insurance company which finds a loophole whenever you want to make a claim.
Banquos sons
None of the predictions made to Banquo come true in the course of the play. The first prediction which comes true is that Macbeth will become king (He is already Thane of Cawdor when they meet the witches, so that is not a prediction.)
the witches told Macbeth that he would be king, and he is worried about his role in making the prediction come true.
The witches predict that Macbeth will be king and how he will fall. These predictions cause Macbeth to dedicate his life to following the witches predictions, doing whatever it takes to make them come true, or to avoid them.
The Prophecy says Macbeth will be king. Duncan is king. Macbeth cannot be king while Duncan is king. Duncan will not be king when he is dead. Therefore, make Duncan dead.
The conflict that rages in Macbeth after he hears the witches prophecy is if he has to take some action to make the prediction true or if it's all up to fate. When he hears Duncan say that Malcolm is to become the next king he knows he has to take action for the prophecy to come true.
After hearing the witches' prophecy, Macbeth struggles with conflicting desires for power and the moral consequences of achieving it. He grapples with his ambition to become king while also battling guilt and fear about the actions he might have to take to fulfill the prophecy. This conflict drives Macbeth to make choices that lead to his downfall.
nobody knows who knows when time will nend and when it will begin
if you have a dream and it does come true it is fulfilled but if it doesnt come true it is unfulfilled.
None of the predictions made to Banquo come true in the course of the play. The first prediction which comes true is that Macbeth will become king (He is already Thane of Cawdor when they meet the witches, so that is not a prediction.)
She helps Macbeth out by tricking him into killing the king. :P
The witches' prediction that Macbeth will become the Thane of Cawdor has come true, as he receives this title in Act 1. However, their prediction that Macbeth will become King has not yet been fulfilled at this point in the play.
not true. your age doesnt.
In Act 1, Scene 3 of "Macbeth," Macbeth's aside foreshadows his eventual involvement in killing King Duncan in order to become king himself. He expresses his conflicted thoughts about the prophesy of becoming king, indicating the dark path he is considering taking to ensure the prophecy comes true. This sets the stage for the unfolding of Macbeth's tragic downfall as he becomes consumed by his ambition.
the witches told Macbeth that he would be king, and he is worried about his role in making the prediction come true.
The witches predict that Macbeth should be wary of Macduff, as he is a potential threat. This comes true when Macduff leads an army to overthrow Macbeth. They also predict that Macbeth will not be defeated until Birnam Wood comes to Dunsinane. This comes true when Malcolm's army uses tree branches from Birnam Wood as camouflage to approach Macbeth's castle.
The witches predict that Macbeth will be king and how he will fall. These predictions cause Macbeth to dedicate his life to following the witches predictions, doing whatever it takes to make them come true, or to avoid them.
Macbeth is inclined to wait and watch the prophecy come true by itself. Lady M sees the prediction as a call to action, commanding her to incite Macbeth to murder the king.