They (win) the race, but they didn't try hard enough.
Julie (buy) the book, but she borrowed it from the library instead.
He (study) harder, but he was too lazy and that's why he failed the exam.
I (arrive) any earlier. There was a terrible traffic jam (= it was impossible for me to have arrived any earlier).
He (pass) the exam, even if he had studied harder. It's a really, really difficult exam.
I (study) harder! (= I didn't study very hard and so I failed the exam. I'm sorry about this now.)
I (go) to bed early (= I didn't go to bed early and now I'm tired).
I (eat) so much cake! (= I did eat a lot of cake and now I don't feel good.)
You (call) me when you arrived (= you didn't call me and I was worried. I wish that you had called me).
John (leave) early, then he wouldn't have missed the plane (= but he didn't leave early and so he did miss the plane).
If I had had enough money, I (buy) a car (but I didn't have enough money, so I didn't buy a car).
I (go) to the party, but I was really busy.
I (call) you, but I didn't know your number.
A: Nobody volunteered to help us with the fair B: I (help) you. I didn't know you needed help.
Lucy (arrived) by now, but she hasn't.
