Conditional sentences

The four conditionals

• Zero (general truth): If you heat ice, it melts. (present + present)
• First (real future possibility): If it rains, we will stay indoors. (present + will)
• Second (unreal present or unlikely future): If I had a car, I would drive to school. (past + would)
• Third (unreal past, regret): If she had studied, she would have passed. (past perfect + would have)

Common errors