1. She (finish) the project on time if she had started earlier.

2. They (go) to the concert, but the car broke down.

3. He (call) me before making that decision, but now it’s too late.

4. We (join) you for dinner if we hadn’t had other plans.

5. You (see) that movie; it was the most popular last year.

6. I (know) about the surprise party; no one told me.

7. She (understand) the instructions correctly. She looked confused.

8. They (leave) the door unlocked while they were away. Now the cat is missing!

9. The train (depart) already. We’re 30 minutes late.

10. You (forget) your keys. I saw you grab them.