I.

1. went

2. had

3. studied

4. didn't spend

5. was

6. asked 

7. didn't stay

8. didn't call

9. wasn't 

10. wrote

11. could

12. would 

II.

1. I wish I saw more people

2. I wish they took a key

3. I wish Ann was here

4. I wish it was cold

5. I wish she lived in a big city

6. I wish I could go to the party 

7. I wish I worked in the city

9. I wish I lay on a beautiful sunny beach

10. They wish Hoa and Ba went fishing this weekend

*Cấu trúc wish ở hiện tại:

→ Động từ thường:  S + wish/ wishes + S + V_ed/ V2

                                       S + wish/ wishes + S + didn't + V_inf

→ Động từ to be: S + wish/ wishes + S + was/ were + (not) ...

*Cấu trúc wish ở tương lai:

S + wish/ wishes + S + would/ could/ should/ might + (not) + V_inf

*Cấu trúc wish ở quá khứ: 

S + wish/ wishes/ wished + S + had + (not) + V_ed/ V3