What is the past perfect of-
She will he singing a song.​

Explanation:

She will be singing a song.

Past perfect:-

Structure= subject+had+v³+object.

- She had sung a song.

Where,

subject= she

V³= sung

object= a song

Explanation:

she had song a song is a past perfect of-

She will he singing a song.

the answer is c bro ok

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.