Meaning: If you’d like someone to say a word, question or phrase again, use this question. Since “to repeat” means “to say again,” you can also ask, “Could you say that again please?”
We can say “please” either at the end of the question or right after “you,” like this:
Could you please repeat that?
Could you repeat that please?

Meaning: Let’s say someone doesn’t understand an idea you’re trying to explain. If you’ve explained it over and over and want to stop, just say “oh, never mind.” You can now talk about something else!
You can also use “never mind” to mean “it doesn’t matter” or “just forget it.” In these situations, say it with a smile and positive tone, though. Otherwise, when you say this phrase slowly with a falling low tone, it can mean you’re bothered or upset.

Example:
Are you going to the grocery store today?
�No, I’m not. But why—do you need something?
�Oh, never mind. It’s okay, I’ll go tomorrow.

Meaning:If you like an idea, you can respond with this phrase. “Great” can be replaced with any synonym, such as “awesome,” “perfect,” “excellent” or “fantastic.”

Example: My mom is baking cookies this afternoon. We could go to my house and eat some. How does that sound?
�Example:That sounds fantastic!