what is the difference between "example" and "example of"?

Case 1 - is not grammatically correct.
Case 2 - "Shall we listen to some examples of how this phrase is used?"
Case 3 - "Can you give me an example that shows how this phrase is used?"
Case 4 - "This phrase is used many ways; for example: "like this."

wilpeterCase 1 - is not grammatically correct.Case 2 - "Shall we listen to some examples of how this phrase is used?"Case 3 - "Can you give me an example that shows how this phrase is used?"Case 4 - "This phrase is used many ways; for example: "like this."

Thanks but I don't understand it. Why case 1 is not valid?
As I know, when something follow at of,

"Case1. Shall we listen to some example how this phrase is used."

"some" is plural, making "example" plural. "Examples" would need to be followed by clarification, such as "of phrases."
Thus it would have to be reworded. "Shall we listen to some examples of how this phrase is used." or perhaps "Shall we listen to some examples of phrases."
Your title indicated you wanted

wilpeter"Case1. Shall we listen to some example how this phrase is used.""some" is plural, making "example" plural. "Examples" would need to be followed by clarification, such as "of phrases."Thus it would have to be reworded. "Shall we listen to some examples of how this phrase is used." or perhaps "Shall we listen to some examples of phrases."Your title indicated you wa

Carter LeeThanks so much. I understand you mean that if I have to be use plural, then of is used for clarification.

No. An example is singular; some examples is plural. That's all.

I will give you an example of a modal construction: You must go.

Ah I get it. Thanks so much.