The four conditionals
A quick reference before you practice.
Zero Conditional
General truths and scientific facts.
If + present simple, present simple.
"If you heat water to 100°C, it boils."
First Conditional
Real or possible situations in the future.
If + present simple, will + base verb.
"If it rains tomorrow, we will stay home."
Second Conditional
Hypothetical or unlikely present/future situations.
If + past simple, would + base verb.
"If I had more time, I would learn piano."
Third Conditional
Hypothetical situations about the past (regrets).
If + past perfect, would have + past participle.
"If she had studied, she would have passed."
Practice
Conjugate the verbs in brackets. Tip: contractions like 'll and 'd work too.
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Level
Zero ConditionalQuestion 1 of 36
If you (mix) red and blue, you (get) purple.
If + present simple, present simple.