Ответ:

1 - We won't arrive definitely before 10 o'clock.

2 - There might be not enough food for everyone.

3 - We will spend the summer this year at home probably.

4 - I might take the children swimming later.

5 - There may be not enough time.

6 - I won't see you tomorrow probably.

7 - The weather may get better tomorrow.

8 - It will be definitely a difficult game.