Common noun mom bought groceries for us at mac's marker.

the answer would be us or mom, as they are things we say or hear every day.

in macbeth, banquo, who in real life had willing in the murder of king duncan, is portrayed as a loyal subject of the king himself. many analysts believe that shakespeare had done this in order to king james, who supposedly was a direct descendant of banquo himself.

hope this ! : )