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Grammar Worksheet

First Conditional: Real Possibilities

B1 if + present simple, will + base verb
Explanation

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.

Form
If clause Main clause
if + present simple → will + base verb
If it rains, → I will take an umbrella.
Main clause first: → I will take an umbrella if it rains.

⚠  Do NOT use ‘will’ in the if-clause:  ✗ If it will rain  →  ✓ If it rains

⚠  No ‘to’ after ‘will’:  ✗ I will to go  →  ✓ I will go

Examples
  1. If it rains tomorrow, we will stay at home.
  2. She will be late if she doesn’t hurry.
  3. If you eat too much sugar, you will feel sick.
  4. Will you call me if you need help?
  5. If I have time, I will visit you.
  6. You won’t pass if you don’t study.
  7. If we miss the bus, we will take a taxi.
  8. She will buy the jacket if it is on sale.
Common Mistakes
Exercises
1 Complete the sentence

Write the correct form of the verb in brackets.

  1. If it (rain), we will cancel the trip.
  2. She will call you if she (need) help.
  3. If I study hard, I (pass) the exam.
  4. They won’t come if the weather (be) bad.
  5. If you (not hurry), you will miss the bus.
2 Correct the mistake

Each sentence has one mistake. Write the correct sentence.

  1. If it will snow, we will build a snowman.
  2. If you will be late, I’ll start without you.
  3. I go to the beach if it’s sunny.
  4. If she doesn’t study, she will to fail.
3 Write the result

Complete each sentence with a result clause using ‘will’.

If it rains, _____.  →  If it rains, I will take an umbrella.

  1. If I feel sick tomorrow,
  2. If we arrive early,
  3. If she misses the bus,
  4. If you don’t sleep enough,
  5. If the exam is hard,
4 Your predictions

Write true first conditional sentences about yourself. Use ‘I will’ or ‘I won’t’.

  1. If the weather is good this weekend,
  2. If I have free time tonight,
  3. If I study English every day,
  4. If I feel tired tomorrow morning,
5 Write the sentence

Use the words to write a complete first conditional sentence.

we / arrive early / find good seats  →  If we arrive early, we will find good seats.

  1. she / miss the train / be late
  2. it / be cold / I / wear a coat
  3. you / not eat / be hungry
  4. he / work hard / get a promotion
Speaking Activity

Ask your partner: “What will you do if…?”

Give a full answer: ‘If it rains, I will…’ Then ask a follow-up question.