Question

Отнесите
события, о которых идет речь в предложениях сначала к прошлому, затем к
будущему, используя соответствующие формы глаголов и обстоятельства времени,
затем образуйте от исходного и полученных предложений отрицательную и
вопросительную формы (в трех временах).

1.    
I play tennis in summer.

2.    
They are often visited by their friends.

3.    
My friend takes books from the library.

Answer 1

1. I play tennis in summer. I don't play tennis in summer. When do you play tennis?
    I played tennis yesterday. I didn't play tennis yesterday. Did you play tennis yesterday?
   I will play tennis tomorrow. I won't play tennis tomorrow. Will you play tennis tomorrow?

2. They are often visited by their friends. They aren't often visited by their friends. Are they often visited by their friends?
   They were often visited by their friends. They weren't often visited by their friends. Were they often visited by their friends?
   They will be often visited by their friends. They won't be often visited by their friends. Will they be often visited by their friends?

3. My friend takes books from the library. My friend doesn't take books from the library. Does your friend take books from the library?
  My friend took books from the library. My friend didn't take books from the library. Did your friend take books from the library?
  My friend will take books from the library. My friend won't take books from the library. Will your friend take books from the library?

P.S. надеюсь, я правильно поняла задание )