First Conditional: Real Possibilities

• CEFR B1
• Grammar
• Printable
• Answer key

First Conditional: Real Possibilities is a printable grammar worksheet for English language learners at CEFR level B1. It covers If + present simple, will + infinitive, with 5 exercises and an answer key.

Use the first conditional for real, possible situations in the future.

The 'if' clause uses present simple. The main clause uses will + base verb.

You can put the 'if' clause first or second. Use a comma when it comes first.

Examples

• If it rains tomorrow, we will stay at home.
• She will be late if she doesn't hurry.
• If you eat too much sugar, you will feel sick.
• Will you call me if you need help?
• If I have time, I will visit you.
• You won't pass if you don't study.
• If we miss the bus, we will take a taxi.
• She will buy the jacket if it is on sale.

What's in this worksheet

1. Complete the sentence
2. Correct the mistake
3. Write the result
4. Your predictions
5. Write the sentence

Common mistakes

• If it will rain, I'll take an umbrella.  →  If it rains, I'll take an umbrella. Never use 'will' in the 'if' clause — use the present simple.
• If you will study, you will pass.  →  If you study, you will pass. Same rule: present simple in the 'if' clause, not 'will'.
• If I am tired, I will to sleep.  →  If I am tired, I will sleep. Use the base verb after 'will' — no 'to'.
• I go home if I finish early.  →  I will go home if I finish early. Use 'will + base verb' in the main clause to talk about the future.

Speaking prompts

• …it rains this weekend?
• …you don't understand something in class?
• …you get a very good mark in your next test?
• …you have a free day with no plans tomorrow?