please help me if this is correct in grammar.

please correct so that i will know the correct grammar.

1.Anyone have done this experience before.

It should be a question:

Has anyone had this experience before?

The sentence you provided contains a grammatical error. The corrected version should be: "Has anyone done this experience before?" Here's why:

To correct the sentence, we need to use the correct verb form. In this case, "has" should be used instead of "have" because "anyone" is a singular pronoun. When using the pronoun "anyone," we need to use the singular form of the verb.

To determine the correct verb form, you can follow these steps:
1. Identify the subject of the sentence: In this case, the subject is "anyone."
2. Determine if the subject is singular or plural: "Anyone" is singular, referring to an indefinite person.
3. Use the correct verb form: For singular subjects, we use the singular form of the verb, which is "has" in this case.

So, to correct the grammar in your sentence, you should use "Has anyone done this experience before?"