NOUN CLAUSES

NOUN CLAUSES

There are different types of noun clauses: wh- clauses, if/whether clauses, and that clauses.

Noun clauses are dependent clauses that can occur in the same place as a noun or noun phrase in a sentences. All noun clauses have a subject and a verb.

WH- CLAUSE
Wh- clauses are sometimes called indirect questions or embedded questions. Although wh- clauses begin with wh- words, they use statement word order.

I wonder where he is.  I wonder where is he 

Use a question mark only if the main clause is a question.

Can you tell me what happened?

IF/ WHETHER CLAUSES
If/whether clauses are also sometimes called indirect questions or embedded questions.
They also use statement word order.

Do you know if you're coming with us.
Do you know if are you coming with us.

Or not can be added to the en of if/whether clauses if the clauses are not very long.

I wonder whether she left or not.

Or not can also immediately follow whether, but it can't follow if.

I wonder whether or not she left.

THAT CLAUSES

That can usually be omitted.




ENJOY TO PRACTICE 
http://www.k12reader.com/term/noun-clause/
http://www.proprofs.com/quiz-school/story.php?title=noun-clause-from-wh-question
http://www.englishgrammar.org/noun-clause-exercise-2/