Skill 9: Use noun clause connectors correctly

A noun clause is a clause that functions as a noun; because the noun clause is a noun, it is used in a sentence as either an object of a verb, an object of a preposition, ot the subject of the sentence.

I Know when he will arrive
NOUN CLAUSE AS OBJECT OF VERB

I am concerned about when he will arrive.
NOUN CLAUSE AS OBJECT OF PREPOSITION

When he will arrive is not important.
NOUN CLAUSE AS SUBJECT

In the first example there are two clauses, i know and he will arrive, These two clauses are joined with the connector when. When changes the clause he will arrive into a noun clause thet functions as the object of the verb know.
In the second example the two clauses i am concerned and he will arrive are also joined by the connector when. When changes the clause he will arrive into a noun clause that functions as the preposition about.
The third example is more difficult. In this example there are two clause, but they are a little harder to recognize. He will arrive is one of the clauses, and the connector when changes it into a noun clause that functions as the subject of the sentence. The other clause has the clause when he will arrive as its subject and is as its verb.

NOUN CLAUSE CONNECTORS

what, when, where, why, how whatever, whenever whether, if that