There is not enough context because it doesnt include the text
Answer: Part of speech - adjective
Banquo knows that Macbeth will not remain king because of the prophecy told by the three witches at the beginning of the play. Banquo will get kings yet not be one. Banquo's decedents will be kings but not he himself.
When Huck's father shows up, I would presume
Good luck~~
