Zero, first, second conditional 1. If you (to heat) iron, it (to start) to get red hot and then white hot.
2. If the government (lose) the next election, the Prime Minister (resign) from politics.
3. If train fares (be) cheaper, more people (use) them.
4. If the talks (be broken) down again, there (be) a war between the two countries
5. Molly (be) a splendid woman, if only she didn't talk so much!
6. The evening will be fine, if only we (not have) a storm.
7. We (go) if it does not rain.
8. If you (take) a taxi, you'll be in time.
9. They won't unless you (ask) them to come
10. You (can) do it if you tried.