Does Frank Epperson deserve credit for inventing the Popsicle? Why or why not?

Frank called his invention the “Epsicle.” It was a hit with the kids at school, and later with his own kids who called it “Pop’s ‘sicle.” The name was catchy and the treat was delicious, so Frank patented it in 1923 to share his Popsicle

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.