Explanation

Wrong Sentences.

1. I have been waiting for you since twenty minutes.
2. I have been living in Frankfurt since nine years.
3. I have been here since many months.
4. My father bought this house for five years.
5. My husband moved to Berlin before ten years.
6. I can't remember when I was in Africa. I was there for a long time.
7. I met my boyfriend in Berlin. We have known each other since two years.
8. My son has been learning French since five years now.
9. The cold world war has been going on since fifty years.
10. We have been married since ten years.
11. I have been working here since twenty years.
12. My children arrived the school for five hours.
13. I have loved this girl since three years.
14. I have had this car since a month.
15. My daughter bought the dress for a couple of months.
16. Germany won the world cup before twenty three years.

RIGHT.

1. I have been waiting for you for twenty minutes.
2. I have been living in Frankfurt for nine years.
3. I have been here for many months.
4. My father bought this house five years ago.
5. My husband moved to Berlin ten years ago.
6. I can't remember when I was in Africa. I was there a long time ago.
7. I met my boyfriend in Berlin. We have known each other for two years.
8. My son has been learning French for five years now.
9. The cold war has been going on for fifty years.
10. We have been married for ten years.
11. I have been working here for twenty years.
12. My children arrived the school five years ago.
13. I have loved this girl for three years.
14. I have had this car for a month.
15. My daughter bought the dress a couple of months ago.
16. Germany won the world cup twenty three years ago.