Conditional Sentences: Zero to Third - English Grammar Lesson
This lesson explains conditional sentences: zero to third in simple English, with rules and examples for students and exam preparation.
Rule
Zero: if + present, present. First: if + present, will. Second: if + past, would. Third: if + past perfect, would have.
Examples
- If you heat ice, it melts.
- If it rains, I will stay.
- If I were rich, I would travel.
Common Mistake
| Incorrect | If I would know, I would tell |
|---|---|
| Correct | If I knew, I would tell |
Practice Tip
Write three original sentences about this topic, then check each one against the rule above.
Related: Parts of Speech and English Tenses.