Make a sentence with needn't have+V3. 1. I don't know why we hurried. We
2. I don't know why they left so early
3. I don't know why she shouted at me like that
4. I don't know why he read the whole book
5. I don't know why she cancelled her holiday
6. Ann bought some eggs. When she got home, she found that she already had plenty of eggs. She
7. Tom went out and took an umbrella with him because he thought it was going to rain. But it didn't rain
8. Jack got very angry with Jill and threw a book at her. Later Jill said: 'I know you were very angry but
9. Brian had no money, so he sold his car. A few days later he won a lot of money in a competition

Sure! Here are the sentences using "needn't have+V3":

1. I don't know why we hurried. We needn't have hurried.
Explanation: In this situation, the speaker is reflecting on a past action of hurrying. It turned out that hurrying was unnecessary because there was enough time.

2. I don't know why they left so early. They needn't have left so early.
Explanation: Here, the speaker is unsure about the reason behind someone's early departure. Later on, it becomes clear that leaving early was unnecessary because there was no need to rush.

3. I don't know why she shouted at me like that. She needn't have shouted at me like that.
Explanation: In this case, the speaker is expressing confusion about the reason behind someone's shouting. As it turns out, shouting was unnecessary, and a calm approach would have sufficed.

4. I don't know why he read the whole book. He needn't have read the whole book.
Explanation: The speaker is uncertain about why someone chose to read the entire book. However, it later becomes apparent that it was not necessary as only specific sections of the book were relevant.

5. I don't know why she cancelled her holiday. She needn't have cancelled her holiday.
Explanation: The speaker is unsure why someone decided to cancel their vacation plans. It becomes clear later on that cancelling the holiday was unnecessary as the circumstances changed.

6. Ann bought some eggs. When she got home, she found that she already had plenty of eggs. She needn't have bought eggs.
Explanation: Ann bought eggs without realizing that she already had enough at home. In hindsight, it was unnecessary for her to buy more eggs.

7. Tom went out and took an umbrella with him because he thought it was going to rain. But it didn't rain. Tom needn't have taken an umbrella.
Explanation: Tom took an umbrella thinking it would rain, but it turned out that it didn't. Taking the umbrella was unnecessary after all.

8. Jack got very angry with Jill and threw a book at her. Later, Jill said: "I know you were very angry but you needn't have thrown a book at me."
Explanation: Jack's anger led him to throw a book at Jill, but Jill is telling him that throwing the book was unnecessary, despite his anger.

9. Brian had no money, so he sold his car. A few days later, he won a lot of money in a competition. Brian needn't have sold his car.
Explanation: Brian sold his car due to a lack of money, but later he won a significant amount of money. Selling the car was unnecessary because he unexpectedly became financially stable.