Choose all the correct negative forms of the sentence. She phoned me three hours ago.

The original sentence is in the Past Simple tense.

Here's the breakdown of the correct negative forms:

• She didn't phone me three hours ago. (Correct: uses the auxiliary verb 'did' in the negative form 'didn't' and the base form of the verb 'phone')
• She did not phone me three hours ago. (Correct: similar to the above, but using the full form 'did not' instead of the contraction 'didn't')

Therefore, the correct answers are:

• She didn't phone me three hours ago.
• She did not phone me three hours ago.