Conditional Sentences: Types and Examples

Conditional sentences connect a condition with a result. The verb forms help express general situations, real possibilities or hypothetical alternatives.

Conditional sentences connect a condition with its result. The four common patterns help us talk about general results, possible futures and imagined situations. They show how the speaker views a situation; they do not give it a fixed probability.

Zero Conditional: General and Repeated Results

Use this for general facts, regular results and habits. The result usually or regularly follows the condition.

Formula: If + present simple, present simple

If you heat water to its boiling point, it boils.

💡 A general result under the right conditions.

If it rains, the ground usually gets wet.

💡 A typical result, though not in every situation.

If you mix red and blue paint, you usually get purple.

💡 A general result when mixing these paint colors.

First Conditional: Real Possibilities

Use this for a possible or likely future condition and its result. The context tells us how likely the speaker thinks it is.

Formula: If + present simple, will + base verb

If it rains tomorrow, I will take an umbrella.

💡 Real possibility - might rain!

If you study hard, you will pass the exam.

💡 Likely result of studying

If she calls, I will answer.

💡 Real future possibility

Second Conditional: Imagined Present or Future

Use this to imagine a different present or future. Compared with the first conditional, it often presents the situation as less likely, but it does not always mean impossible.

Formula: If + past simple, would + base verb

If I had wings, I would fly to school.

💡 Imaginary - I don't have wings!

If I won the lottery, I would buy a house.

💡 An imagined future situation and result.

If I were you, I would study more.

💡 Giving advice (use "were" for all subjects)

Third Conditional: Imagining a Different Past

Use this to imagine a different past condition and result. It can express regret, give an explanation or simply explore what might have happened.

Formula: If + past perfect, would have + past participle

If I had studied, I would have passed.

💡 Regret: I didn't study, so I didn't pass

If she had left earlier, she would have caught the bus.

💡 She didn't leave early, missed the bus

If they had invited me, I would have come.

💡 They didn't invite me, so I didn't come

Quick Summary Table

Type	If Clause	Result Clause	Used For
Zero	Present Simple	Present Simple	General facts, regular results
First	Present Simple	Will + verb	Real future possibilities
Second	Past Simple	Would + verb	Imagined present or future
Third	Past Perfect	Would have + past participle	Imagined past result

Continue learning

Future Simple with Will: Rules and Examples · Past Perfect: Rules and Examples

Practice in the 30 Days English Challenge: Day 8: Would, Should, Could and Might: Uses and Examples · Day 22: English Conjunctions: Connect Ideas with And, But and Because · Day 28: English Conditionals: Real and Imagined Situations

Mastering Conditional Sentences: Zero to Third