* She has is used in the present perfect tense. This tense is used for actions that started in the past and continue to the present, or for actions that happened in the past but have a connection to the present.
* Example: "She has been studying English for five years."
* She have is incorrect in standard English grammar. The correct form for the third person singular (she, he, it) is has.
Here's a simple way to remember:
* She has is like she does.
* She have is like they have, which is correct for plural subjects.
Let me know if you'd like more examples or have any other grammar questions!