Dưới đây là những câu có lỗi sai cùng với cách sửa:

1. **This is the most beautiful place I have ever visited.**
2. **This time next week they will sit in the train on their way to Paris.**
3. **The radio has been played since 7 a.m. I wish someone would turn it off.**
4. **I came late to class. When I entered, the teacher was writing something on the blackboard.**
5. **They will have English from nine to ten in this room. Don't annoy them then.**
6. **I made cakes. That's why my hands are covered with flour.**
7. **I got a sore throat because I have been speaking for 3 hours.**
8. **It is raining hard. We can't do anything until it stops.**
9. **She had got into her shoes, put on her coat and went to the door.**
10. **What tune did they play when we came in?**
11. **That evening we stayed up to talk about the town, where he has lived for a long time.**
12. **I have lived in this city for 15 years. My family moved here when I was 10 years old.**
13. **We are very tired. We have walked for three hours.**
14. **I haven't seen her since we left school.**
15. **I have been thinking about you a lot lately and I have come to the conclusion that I won't be able to live without you.**
16. **Coming into his room, he found that someone had broken into it.**
17. **It always rains when they have just cleaned the windows.**
18. **The last time I saw him, he was wearing a black suit.**
19. **By the first of next July I will have worked for this company for 20 years.**
20. **This is a conversation between two friends who had just met up with each other.**

Các lỗi chủ yếu là do các thì không nhất quán và một số lỗi ngữ pháp.