In the beginning we learn of Lady Macbeth’s sleepwalking, a manifestation of her guilt which eventually leads to her suicide in scene five and Macbeth’s loss of humanity “She should have died hereafter. There would have been a time for such word” (V, V. 17-18). Simultaneously an English/Scottish army marches on Duns-inane and takes branches from Birnam woods to conceal their forces thus making it appear as though the woods were moving. This is important because Macbeth thought this impossible and his reign secure but now begins to understand his kingdom will fall, though still believes himself un-killable “Thou wast of woman. But swords I smile at, weapons laugh to scorn, Brandished by man that’s of woman born.” (V, VII. 13-15). Ultimately he is slain by Macduff who was birthed by a caesarian section and King Duncan’s son is instated as king.
All of the witches prophecies come true in Macbeth save one which is a nod to the British King at the time. For the people involved, whose lives were foretold it brings into question, fate or freewill. I believe that fate is the actions carried out while free will is the understanding of the decisions. This is supported in Macbeth by Malcolm moving the forest unaware of the witches existences, therefore, providing evidence what they saw was the inescapable future.
Macbeth 