=>
1. He last came back to his home in 2011.
The last time he came back to his home was in 2011.
2. He hasn't seen his brother for nearly twenty years.
My father last saw his brother nearly twenty years ago.
3. I have been waiting in the queue for forty minutes (so far).
4. I have studied English since I was nine years old.
5. This is the third time I have asked you this question.
6. That was the last time she got in touch with him.