1. He didn't used to like dancing in the past

2. I didn't use to lost my interest in my work.

3. My sister used to have long hair when she was younger.

4. His parents used to live in America when they were small.

5. Now there are more traffic accident than they used to.

⇒ Used to+ V: Đã từng làm gì

⇒ Didn't use to+ V: Chưa từng làm gì

S+used to+V: từng hay làm gì trong quá khứ

1. He used to like dancing

2. I used to be interested in my work

3. My sister used to have long hair when she was younger

4. His parents used to live in America when they were small

5. Now there are more traffic accidents