Exercise with 'could (do) and could have (done)

1. What shall we have for dinner tonight? We could have fish. 

2. When shall I phone Angela? You could phone now. 
3. What shall I gave Ann for her birthday? You could gave [always present tense after, "can/could", "may/might", "must"] give her a book. or "You could have given her a book".
4. Where shall we hang this picture? We could hang the picture in the kitchen. or "we could have hung the picture in the kitchen".

In a question and answer scenario, it is preferable to use present tense or past participle for the immediate answer, "We can have fish", "You can phone now", "You can give her a book"

5, I'm so angry with him. I could kill him!
6. If you're hungry, we can have dinner now.
7. It's so nice here! I could stay here all day, but unfortunately I have to go.
8. Where's my bag? Have you seen it? No, but it could be in the car.
9. Peter is a keen musician. He plays the flute and ha could can [You must use present tense here.  1.  You used present tense and so you need to have consistent forms.  2.  If you use past tense, it can mean that Peter can no longer play the piano now] also play the piano.
10. I need to borrow a camera. You can borrow mine.
11. The weather is nice now, but it could can [need to be consistent in tenses] change later.
12. I had a very boring evening at home yesterday. Why did you stay at home? You could have gone out with us.
13. There's an interesting job advertised in the paper. You could look for it. What sort of a job was it? Show me the advertisement.
14. How was your exam? It was difficult? It wasn't so bad. It could have been worse,
15. I got very wet walking home in the rain last night. Why did you walk? You could have taken a taxi.
16. Where shall we meet tomorrow? Well, I could can visit to your house if you like.
17. I could wear that hat. I'd look silly and people would laugh at me.
18. We managed to find the restaurant you recommended, but we couldn't have found it without the map that you drew for us.
19. Paul has to get up at 4 o'clock every morning. I don't know how he does it. I couldn't get up at that time every day.
20. The stuff at the hotel were really nice when we stayed there last summer. They could have been more helpful.
21. I tried to phone you last week. We had a party and I wanted to invite you. That was nice of you, but I couldn't have gone it anyway, I was away all last week.

Exercise with could (do) and could have (done)

1. What shall we have for dinner tonight? We could have fish.
2. When shall I phone Angela? You could phone now.
3. What shall I give Ann for her birthday? You could give a book.
4. Where shall we hang this picture? We could hang the picture in the kitchen.
5, I'm so angry with him. I could kill him!
6. If you're hungry, we can have dinner now.
7. It's so nice here! I could stay here all day, but unfortunately I have to go.
8. Where's my bag. Have you seen it? No, but it could be in the car.
9. Peter is a keen musician. He plays the flute and he could also plays the piano.
10. I need to borrow a camera. You can borrow mine.
11. The weather is nice now, but it could change later.
12. I had a very boring evening at home yesterday. Why did you stay at home? You could have gone out with us.
13. There's an interesting job advertised in the paper. You could look for it. What sort of job? Show me the advertisement.
14. How was your exam? Was it difficult? It wasn't so bad. It could have been worse. 
15. I got very wet walking home in the rain last night. Why did you walk? You could have taken a taxi.
16. Where shall we meet tomorrow? Well, I could come to your house if you like.
17. I could wear that hat. I'd look silly and people would laugh at me.
18. We managed to find the restaurant you recommended, but we couldn't have found it without the map that you drew for us.
19. Paul has to get up at 4 o'clock every morning. I don't know how he does it. I couldn't get up at that time every day.
20. The staff at the hotel were really nice when we stayed there last summer, but they could have more helpful.
21. I tried to phone you last week. We had a party and I wanted to invite you. That was nice of you, but I couldn't have gone anyway, I was away all last week.