1)I will play chess tomorrow.
2)I will not play chess tomorrow.
3)Will you play chess tomorrow?
4)He plays chess every day
5)He does not play chess every day
6)Does he play chess every day?
7)They are playing chess now
8)They are not playing chess now
9)Are they playing chess now?
10)Nick is going to the park now
11)Nick goes to school every day
12)Nick will go to school tomorrow
13)I miss your excellent cooking
14)Do you ever buy presents?
15)Do you think it is easy
16)will your mother recieve
17)is unpredictable
