1. He has been doing his homework since 9'o clock.
2. If they will go out, we will follow them.
3. If you depend on others for everything, you will not learn anything.
4. If you had helped your mother, she would have felt happy.
5. He has been trying for a job since last year.
6. Mukesh Ambani had constructed the world's costliest house four years ago.
7. He had returned from Dubai a month ago.
8. He does not have any cash.
9. I have known them for the last three years.
10. Does he remember our help?
Hope this helps.
