First you need to explain what a noun clause is.
I didn't realize that you no longer use that email address.
He was going to drive Traffic may be bad she might move he could help They had to stay I must be careful• Here are a few noun clause sentences where the noun clause is the subject of the sentence.
Please tell me when the party starts.
The coach gave the instruction that we must never miss a session of training.
It is essential that babies have stimulation.
Herein How many clauses are there in each sentence? It addresses the question from the independent clause, which is "Do you know? Unlike , noun clauses contain both a subject and a verb.