Question

Правильно ли стоят глаголы в Present Perfect?
1. Have you ever been to South America?
2. We have not been in London for a year now.
3. I have taken lessons in music lately, and I must say I have enjoyed them. I have loved music since my childhood.
4. How long you have known each other? - In fact, we only just have met.
5. I have wanted to tell you this for a long time, but all this time I have been afraid to do it.
6. How long you have had this old car? How long you had this old car? Why you have not bought a new one yet?
7. Why your friend have been so sad lately? What has happened to him?
8. Do you know the feeling "Oh, I have been here before many times"? - No, I never have not have such a feeling in my life."

Answer 1

в 7) has been. your friend= he. 8) have never had двойное отрицание не может быть .
остальные предложении впорядке