1. If you don't go right now, you'll be late for the train.
Unless you go right now, you'll be late for the train.
2. If he had enough qualifications, he would apply for the job.
Were he to have nough qualifications, he would apply for the job.
3. If we don't hurry, we will be late for the exam.
Unless we hurry, we will be late for the exam.
4. If you often talked to them, they would understand you.
Were you to talk to them, they would understand you.
5. If you didn't speak English unaturally, they would understand you.
Were you not to speak English unaturally, they would understand you.
6. If she knew everyone in London, she would live there.
Were she to know everyone in London, she would live there.
7. If I found a job in the country, I would live there.
Were I to find a job in the country, I would live there.
8. If I had a spare ticket, I could take you to the concerts.
Were I to have a spare ticket, I could take you to the concerts.
9. If the children hadn't forgotten watering some seeds, they would have grown.
Had the children not forgotten watering some seeds, they would have grown.
10. If they understood the problem, they would find a solution.
Were they to understand the problem, they would find a solution.
11. If he didn't sit around too much, he would be fit.
Were he not to sit around too much, he would be fit.
12. If Carol hadn't been studying, she would have answered the phone.
Had Carol not been studying, she would have answered the phone.
13. If Rita had got some sleep last night, she wouldn't have exhausted today.
Had Rita got some sleep last night, she wouldn't have exhausted today.
14. If she weren't thin, she wouldn't feel so cold too much.
Were she not to be thin, she wouldn't feel so cold too much.
15. If he polished his shoes, he would look smart.
Were he to polish his shoes, he would look smart.