Noun clauses that begin with a question word

Noun clauses that begin with a question word

We will tell you how Information Question and Noun Clause are different and how they are the same.

Now, Information Questions begin with question words:

Where is Mr. Lee?

Noun Clauses begin with question words too, but Noun Clauses just don't ask questions!

I don't know where Mr. Lee is.

But remember, you use question word order in an Information Question.

Where did Mr. Lee go?

You DON'T use question word order in a Noun Clause:

I don't know where Mr. Lee went.

Information Question and Noun Clause are different.

Except! Information Question and Noun Clause are the same when the question word is the subject.

Here's a Question:

Who invented the computer?

And here's a Noun Clause:

I don't know who invented the computer.