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1. Yesterday, we didn't chat on the phone.

2. Did you like the food yesterday?

3. My sister didn't want to go last week.

4. What did your brother like ten years ago?

5. Sophie didn't help her teacher two hours ago.

6. Did the shop open yesterday?

7. Last weekend, my parents didn't play badminton together.

(+) S V2/ed

(-) S didn't V

(?) Did S V?

1. Yesterday, we didn't chat on the phone.

Trans :  Hôm qua chúng ta không nói chuyện qua điện thoại.

2. Did you like the food yesterday?

Trans :  Bạn có thích món ăn ngày hôm qua không?

3. My sister didn't want to go last week.

Trans :  Tuần trước chị tôi không muốn đi.

4. What did your brother like ten years ago?

Trans :  Mười năm trước anh trai bạn thích gì?

5. Sophie didn't help her teacher two hours ago.

Trans : Sophie đã không giúp đỡ giáo viên của mình hai giờ trước.

6. Did the shop open yesterday?

Trans: Hôm qua quán có mở cửa không?

7. Last weekend, my parents didn't play badminton together.

Trans : Cuối tuần trước, bố mẹ tôi không chơi cầu lông cùng nhau.

(+) S +Vpast+)

(-) S +Did+not+V+O

(?) Did+S+V+O?