Zero Conditional

• CEFR A2–B1
• Grammar
• Printable
• Answer key

Zero Conditional is a printable grammar worksheet for English language learners at CEFR level A2–B1. It covers if + present simple, present simple, with 5 exercises and an answer key.

Use the zero conditional for facts, rules, and things that are generally true.

Use present simple in both parts of the sentence.

You can often use when instead of if for things that regularly happen.

Examples

• If you mix red and blue, you get purple.
• If I drink coffee at night, I do not sleep well.
• When people drive too fast, accidents happen.
• If the shop is closed, we go to another one.
• If you press this button, the machine starts.
• When water freezes, it becomes ice.
• If students miss class, they lose practice.
• When my phone battery dies, I feel lost.

What's in this worksheet

1. Complete the facts
2. Choose the correct form
3. Correct the mistake
4. Join the ideas
5. Class rules

Common mistakes

• If you will heat water, it boils.  →  If you heat water, it boils. Use present simple after if.
• If I am late, I will take a taxi.  →  If I am late, I take a taxi. For general habits, use zero conditional. Use first conditional for a future situation.
• If people eats too much, they feel sick.  →  If people eat too much, they feel sick. Use correct present simple agreement.
• When it rains the streets get wet.  →  When it rains, the streets get wet. Use a comma when the when/if clause comes first.

Speaking prompts

• What happens if you sleep badly?
• What do you do when you lose your keys?
• What happens if students do not study?
• What do people do when it is very hot?