If-Clauses and Conditionals + Free PDF
These grammar worksheets help you practice degrees of certainty in English. Free downloadable PDF worksheets with answers are available for offline practice.
Quick Rules and Exercises.
Zero Conditional (Facts & General Truths)
👉 If + present simple → present simple
Example- If you heat water, it boils.
First Conditional (Real Future Possibility)
👉 If + present simple → will + verb
Example- If it rains, we will stay home.
Second Conditional (Unreal / Imaginary Present)
👉 If + past simple → would + verb
Example- If I were you, I would apologize.
Third Conditional (Past Unreal Situation)
👉 If + past perfect → would have + past participle
Example- If he had left earlier, he would have caught the train.
No “will” in the if‑clause
✅ Correct: If she calls, I will answer.
❌ Wrong: If she will call…
If it , we will stay home.
If I her, I will tell her the truth.
If they , they would pass the exam.
If I you, I would apologize.
If he had left earlier, he the train.
If she harder, she might get promoted.
If we , we will miss the bus.
If they had invited me, I to the party.
If he too much, he feels sick.
If I more free time, I would learn Spanish.
If she , I will answer.
If we had known about the problem, we .
If you red and blue, you get purple.
If they now, they will arrive on time.
This free PDF includes more exercises with answers. Suitable for students and teachers