00 / Clauses & Questions
First conditional
The first conditional describes a likely or possible future situation and its result. It connects a specific condition to a probable consequence.
A2Elementary
01 / Overview
Use the first conditional to talk about real possibilities. It describes what will happen in the future if a specific condition is met. The condition is seen as realistic and likely to occur.
02 / Form
If + present simple, will + verb
The sentence consists of two clauses: the if-clause (condition) and the main clause (result). Use the present simple after 'if', even though the meaning refers to the future. Use will + infinitive in the result clause.
03 / Examples
04 / Common mistakes
If it will rain, I will stay home.
If it rains, I will stay home.
Do not use 'will' in the if-clause. Use the present simple to describe the condition.
If I see him I tell him.
If I see him, I will tell him.
The result clause requires 'will' to show that the event is a future consequence.
05 / Clause Order
The meaning remains the same regardless of which clause comes first.
| Order | Example | Punctuation Note |
|---|---|---|
| If-clause first | If I go, I will call. | Use a comma after the if-clause. |
| Main clause first | I will call if I go. | Do not use a comma. |
06 / Practice
Complete the sentence: If she ___ (finish) her work early, she will go to the gym.
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Answer: finishes
Why: The if-clause requires the present simple tense. For 'she', the verb 'finish' becomes 'finishes'.
Complete the sentence: We ___ (be) late if the bus does not arrive soon.
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Answer: will be
Why: The result clause requires 'will' followed by the base form of the verb.
Correct the error: If you will eat all that cake, you will feel sick.
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Answer: If you eat all that cake, you will feel sick.
Why: The future marker 'will' cannot be used inside the if-clause; the present simple is used instead.