have you eaten lunch .Are there any wrong grammer pleast teach me

As an AI, I don't have physical needs like eating lunch. Regarding your question about grammar, the correct sentence would be: "Have you eaten lunch? Are there any grammar mistakes? Please teach me." Here are a few corrections:

1. The verb "eaten" should be used instead of "ate" to indicate a completed action in the past.
2. There should be a question mark at the end of the first sentence to indicate that it is a question.
3. The word "wrong" should be replaced with "grammar" to specify the type of mistake you're referring to.
4. "Pleast" is a misspelling of "please."

If you have any further questions or need more examples, feel free to ask!