Решение:
Чтобы сделать отрицательное предложение в Past Simple, используем вспомогательный глагол 'did not' (или 'didn't') и ставим основной глагол в начальную форму (инфинитив без to).
- I watched TV yesterday. -> I didn't watch TV yesterday.
- She played tennis last week. -> She didn't play tennis last week.
- They went to the cinema. -> They didn't go to the cinema.
- He finished his homework. -> He didn't finish his homework.
- We visited London. -> We didn't visit London.