Conditional Sentences

1. Zero Conditional (Present Real Conditional)

  • If + present simple, present simple.
  • Example: If you heat water to 100 degrees Celsius, it boils.

2. First Conditional (Future Real Conditional)

  • If + present simple, will + base form.
  • Example: If it rains tomorrow, I will stay home.

3. Second Conditional (Present Unreal Conditional)

  • If + past simple, would + base form.
  • Example: If I had a million dollars, I would buy a yacht.

4. Third Conditional (Past Unreal Conditional)