Identify the error: She did not went there.

The error in the sentence "She did not went there" is found in the verb form "went." When an auxiliary verb like "did" (or "do," "does") is used in a negative sentence or a question, the main verb that follows it must always be in its base form (infinitive without "to").

In this case:

• "Did not" is the past simple auxiliary verb.
• "Went" is the past simple form of the verb "to go."

Since "did not" already carries the past tense, the main verb "go" should revert to its base form. Therefore, the correct sentence should be: She did not go there.

This rule applies universally in English grammar: after "do," "does," or "did," the subsequent main verb is always in its bare infinitive form.