Question

All tenses. Active voice
1 Yesterday they (to go) for a walk for 2 hours already.
2. Yesterday by 9 pm (to gо) for a walk with my friends already
3 You (to go) for a walk alone when you were a child?
4. My mother (to go) for a walk every day.
5 I (to go) for walk to the park next week
6. Tomorrow I (to go) for walk for l hour.
7. He (to go) for a walk already?
8. Tomorrow at 6 pm. I (to go) for a walk.
9 she (to go) for a walk now
10 Tomorrow by pm.I (not to go) for a walk yet
11 My brother (to go) for walk for half an hour already

Answer 1

1 had gone
2 I had gone
3 Did you go for a ....
4 goes
5 I am going to
6 am going
7 Has he gone for...
8 will be walking
9 is going 
10 won't have gone
11 has gone.