Read the Look out! box. Then find examples of needn’t have and didn’t need to in exercise 2. (Đọc phần Look out! Sau đó tìm ví dụ về needn’t have và didn’t need to ở bài 2.)

LOOK OUT! needn’t have / didn’t need to

1 We use needn’t have + past participle to say an action that was done was unnecessary.

The café isn’t open yet. I needn’t have got here so early!

2 We use didn’t need to + infinitive to say an action was unnecessary, whether or not it was done.

The bus stopped nearby, so I didn’t need to walk far.