In the book Macbeth Act 4, scene 1, what does the vision about banquo at the end of kings mean?

I can't really remember but I think it was a warning that something bad was going to happen to the king that will get him killed or lead to his death. I'm not really sure I haven't read the book in a while.

appeal to ethos is your answer.

the answer is:

when will (v) the books (n) be (v) due?

nouns refer to people (other than pronouns), places and things, whereas verbs describe actions and are usually part of the predicate of a sentence. finally, pronouns can work as nouns and identify the participants in speech.

in the example sentence, "will" is a verb part or auxiliary verb, "be" is an infinitive verb and "books" is a plural noun.