 Noun Clause is Noun clause used as an object. He said something. What did he say? He said that he was sick. Noun clause used as a subject. Something is your business. What is your business? Whatever you do is your business. Someone is still in the cafeteria. Who is in the cafeteria? Whoever ate my lunch is still in the cafeteria. The subordinator may take the subject or object position in a noun clause. Note the usage of the following. Henry loves Mary. Mary is the object of the sentence. Mary loves Jim. The person whom Lee loves is a secret. Relative clause subordinator in object position. The person who loves Tim is a secret. Relative clause subordinator in subject position. Who Henry loves is a secret. Noun clause subordinator in object position. Who Henry loves is a secret. Noun clause subordinator in object position. Who loves Tim is a secret. Noun clause subordinator in subject position. Subordinators which are used in noun clauses. That. Rich. How much? What? Where? Many. Who? When? How long? Whoever. How? How far? Whatever. Why? How often? Whether. If. Who's? Remember to preserve word order in noun clauses. I don't know who he is. Whoever she is is not important. Whatever is in the box is a mystery. Can you tell me what he is doing? She doesn't understand why he is leaving. I wonder how much that costs. Do you know how long it will take?