1. Condition – the “if” part

2. Result – the outcome part

Structure:

• If + condition, result
  or

• Result + if + condition

Example:

• If it rains, we will stay home.

📘 Types of Conditional Sentences

Conditional sentences are divided into 5 main types:

1️⃣ Zero Conditional – General Truth / Scientific Fact

Structure:

• If + present simple, present simple

Use:

• For general rules, habits, or universal truths

Example:

• If you heat water to 100°C, it boils.

2️⃣ First Conditional – Real Possibility in Future

Structure:

• If + present simple, will + base verb

Use:

• For conditions that can happen in the future

Example:

• If I study hard, I will pass the exam.

3️⃣ Second Conditional – Hypothetical / Unreal Present

Structure:

• If + past simple, would + base verb

Use:

• For imaginary situations that are not true at present

Example:

• If I had a car, I would drive to work.

4️⃣ Third Conditional – Unreal Past

Structure:

• If + had + past participle, would have + past participle

Use:

• To imagine a different outcome in the past

Example:

• If I had studied, I would have passed.

5️⃣ Mixed Conditional – Past Event + Present Result

Structure:

• If + had + past participle, would + base verb

Use:

• To show that a past event affects the present

Example:

• If I had gone to bed early, I wouldn’t be so tired now.

🧠 Bonus Tips

• Other words like unless, in case, provided that can also show conditions.

• Negative form example:

  • If he doesn’t come, we will leave.

🎯 Practice Sentences

• If she calls, I will tell you.

• If I were rich, I would help the poor.

• If he had apologized, I would have forgiven him.

✍️ Conclusion

Conditional sentences are a very useful part of English grammar.
They help you express possibilities, predictions, and regrets clearly.