He had his suspicions because the fact the Macbeth killed the servants he blamed the murder on.
Technically Macbeth only murdered Duncan in the begining and young siward at the end. Then he had the murderers go to kill Fleance and his father. Fleance escaped so he wouldn't count, and Macbeth also had the murders go to kill the Thane of Fife (macduff) and ends up only having the family killed. Macbeths wife in the end dies of what no one really knows but it can be argued that he was the cause of her death. He also slays young siward before macduff challenges him. So it really depends on how you look at it. If you want to know how many he killed with his own hands then 2.
Macbeth kills them as soon as he sees them. He can't have anyone left who knows he killed Duncan.
Macduff is suspicious and knows Macbeth killed the King. Macduff is also forming an army in England with Malcolm. Because Macduff is in England and Macbeth can't reach him, he figures the only way to hurt and destroy him is to kill his family. He sends murderers to the house and they all die. Macduff is still alive and Macbeth is getting tired of living and just wants to die. When Macduff tells everyone about Macbeth's murder, he doesn't care any more. At the battle field Macduff tells Macbeth that if he just gives up now and doesn't fight he'll humiliate him infront of the whole Scotland. He even will do it if he doesn't give up. That makes Macbeth angry again and he drops his shield (either to show that he still, only a little bit, doesn't want to live or to just challenge Macduff further), the two fight and soon Macduff cuts his head off and puts it on a stick and marches around with it.
Macbeth hires the murderers to kill Banquo for two reasons. Banquo is the only person, besides Macbeth's wife, who knows about the witches' prophecies, which means that he may suspect that Macbeth killed Duncan in order to fulfill their prophecy and become King. Secondly, Banquo is prophesied to become the father of kings, which means that it will be his ancestors, not Macbeth's, who will inherit the throne. By killing Banquo, Macbeth hopes to prevent this prophecy from coming true.
He was testing Macduff to see if he genuinely had the interest of Scotland at heart. When Malcolm says "He hath not touched you yet" (IV, iii, 14) it means that he suspects Macduff is in league with Macbeth to take him prisoner and kill him. Malcolm then makes up all his vices to make sure that Macduff wants a good king and not just Malcolm. When Macduff responds that with his vices, Malcolm would make a terrible kind, Malcolm responds that he made the vices up and he knows that Macduff has Scotland's best interests at heart.
because he just knows
Technically Macbeth only murdered Duncan in the begining and young siward at the end. Then he had the murderers go to kill Fleance and his father. Fleance escaped so he wouldn't count, and Macbeth also had the murders go to kill the Thane of Fife (macduff) and ends up only having the family killed. Macbeths wife in the end dies of what no one really knows but it can be argued that he was the cause of her death. He also slays young siward before macduff challenges him. So it really depends on how you look at it. If you want to know how many he killed with his own hands then 2.
Macbeth kills them as soon as he sees them. He can't have anyone left who knows he killed Duncan.
Because macduff harbors suspicions about the person who actually murderd King Duncan, therefore he turnes against Macbeth and consequently was absent from his coronation. Macbeth organises to kill her for revenge and also to set a distraction to protect himself from an enraged Macduff.
Macbeth initially thought positively of King Duncan and admired his leadership. However, his ambition and the witches' prophecy led him to consider harming Duncan in order to become king himself. Ultimately, Macbeth's thoughts towards Duncan became twisted as he plotted his murder.
Macduff is suspicious and knows Macbeth killed the King. Macduff is also forming an army in England with Malcolm. Because Macduff is in England and Macbeth can't reach him, he figures the only way to hurt and destroy him is to kill his family. He sends murderers to the house and they all die. Macduff is still alive and Macbeth is getting tired of living and just wants to die. When Macduff tells everyone about Macbeth's murder, he doesn't care any more. At the battle field Macduff tells Macbeth that if he just gives up now and doesn't fight he'll humiliate him infront of the whole Scotland. He even will do it if he doesn't give up. That makes Macbeth angry again and he drops his shield (either to show that he still, only a little bit, doesn't want to live or to just challenge Macduff further), the two fight and soon Macduff cuts his head off and puts it on a stick and marches around with it.
He's inside the castle. Duncan reaches the castle in Act I Scene VI, and Macbeth arrives in the previous scene. Duncan remarks that Macbeth passed them on the way, so he knows he's around somewhere. He asks Lady Macbeth to "Conduct me to mine host" and they enter the castle.
In Scene 6 of "Macbeth," the dramatic irony lies in the conversation between Duncan and Lady Macbeth, where Duncan praises the hospitality and kindness of his hosts, unaware that they are plotting his murder. The audience knows the true intentions of Macbeth and Lady Macbeth, creating tension and suspense as the characters interact unknowingly.
Macbeth hires the murderers to kill Banquo for two reasons. Banquo is the only person, besides Macbeth's wife, who knows about the witches' prophecies, which means that he may suspect that Macbeth killed Duncan in order to fulfill their prophecy and become King. Secondly, Banquo is prophesied to become the father of kings, which means that it will be his ancestors, not Macbeth's, who will inherit the throne. By killing Banquo, Macbeth hopes to prevent this prophecy from coming true.
There is a sort of conflict in Lady Macbeth's mind between what she wants to do (i.e. kill Duncan) and what she suspects rightly Macbeth will want to do (i.e. not kill Duncan). She therefore sets about persuading him to let her plan the murder, so she can overcome the objections she knows he will make.
It's not so much what she tells him, but how she needles him. She knows that he is sensitive to threats to his masculinity, because of the peculiar idea they have that masculine=courageous=good. So all she has to do is to say, "What? Are you not manly enough to kill Duncan?" and he will come around.
He was testing Macduff to see if he genuinely had the interest of Scotland at heart. When Malcolm says "He hath not touched you yet" (IV, iii, 14) it means that he suspects Macduff is in league with Macbeth to take him prisoner and kill him. Malcolm then makes up all his vices to make sure that Macduff wants a good king and not just Malcolm. When Macduff responds that with his vices, Malcolm would make a terrible kind, Malcolm responds that he made the vices up and he knows that Macduff has Scotland's best interests at heart.