<p>I am confused about noun clauses. I know tht a noun(subject) can be joined by a linking verb to only clauses tht are noun clauses. Wht pronoun signals a noun clause? "What, which, that, who" are the usual ones right? However "when" clauses can't be used? How about "where"?</p>
<p>Can anyone help me out by explaining?</p>
<p>“When” and “where” typically begin adverbial clauses.</p>
<p>Example: WHEN I am tired, I will go to bed.
–“When I am tired” modifies the verb “will go”, explaining the conditions/time of that action, so this is an adverb clause.
–Alternatively, you could say “Later, I will go to bed.” replacing the clause with a single adverb.</p>
<p>On the other hand, noun clauses will be either the subject or object of a verb, and they are generally essential to the sentence.</p>
<p>Example: I believe that you are right.
–“that you are right” is the noun clause, and the object of the verb “believe”
–You can restate this sentence as “I believe you.” or “I believe Bob.” and you see that the noun clause is just replaced with a (pro)noun. </p>
<p>So, look at what the clause (it might help to just underline it or separate it somehow) is doing in the sentence, and try to replace it with a single word that doesn’t change the sentence’s meaning. Look at whether that single word is a noun or other part of speech, and that’s what the clause is doing, too. Hope that helps!</p>