Plan: What is the nominal?

Because the wh- clause doesn't have a headword, it's called a free (nominal) relative clause.
Nominal clauses are dependent clauses. They cannot stand alone as a sentence but do contain a verb.
Next, it follows a linking verb. Third, it fills in information about the subject, as in "Beth is she" or "She is Beth.")
Beth is whom I was referring to. (The clause acts in this sentence as a predicate nominative. First, it's a wh- clause because it has a subject and a verb. 
What I had for lunch was delicious. (The noun clause acts as a subject, as in "The soup was delicious.")
I believe that grammar is easier than it seems. (The noun clause acts as an object, as in "I believe it.")
Nominal clauses are dependent clauses. They cannot stand alone as a sentence but do contain a verb.
Nominalization
Nominalization
The act of creating a nominal from a verb, adjective, or other words (even another noun) is known as nominalization. For example, take blogosphere. It's a new noun created from another plus the addition of a suffix. It's easy to create nouns (nominals) in English from other words. Even just adding -ing to a verb to make a gerund is nominalization, such as firing from fire. Or adding a suffix to an adjective, such as adding -ness to lovely to make loveliness.
Thank you for attention!