1 If I were not too busy, I should go to the concert.
2 If I hadn’t been too busy, I should have gone to the concert.
2 If I hadn’t been too busy, I should have gone to the concert.
1 They would all be surprised if I made such a mistake.
2 They would all have been very surprised if I had made such a mistake.
2 They would all have been very surprised if I had made such a mistake.
1 If he didn’t come on time, should we have to wait for him?
2 If he hadn’t come on time, should we have had to wait for him?
2 If he hadn’t come on time, should we have had to wait for him?
1 If no one came to help, we should be obliged to do the work ourselves.
2 If no one had come to help, we should have been obliged to do the work ourselves.
2 If no one had come to help, we should have been obliged to do the work ourselves.
1 If you put on your glasses, you would see better.
2 If you had put on your glasses, you would have seen better.
2 If you had put on your glasses, you would have seen better.
1 What should we do if they were late?
2 What should we have done if they had been late?
2 What should we have done if they had been late?
1 Would you be very angry if we didn’t come?
2 Would you have been very angry if we hadn’t come?
2 Would you have been very angry if we hadn’t come?
1 Would he be very displeased if I didn’t ring him up?
2 Would he have been very displeased if I hadn’t rung him up?
2 Would he have been very displeased if I hadn’t rung him up?