First Conditional Sentences With Examples

The first conditional is a sentence structure used to talk about future possibilities that are likely to happen if a certain condition is met. It follows this pattern: If + present simple, will + base verb. This helps English learners express likely results of real situations.

Structure of a First Conditional Sentence

A first conditional sentence has two parts: an if clause (condition) and a main clause (result).

Structure: If + present simple, will + base form of the verb

If Clause (Condition)

• Begins with the word if to introduce a condition.
• Uses a present simple verb.

Examples:

• If it rains, we will stay at home.
  • If clause: If it rains
  • Main clause: we will stay at home
• If she calls me, I will answer.
  • If clause: If she calls me
  • Main clause: I will answer
• If you eat too much, you will feel sick.
  • If clause: If you eat too much
  • Main clause: you will feel sick

Main Clause (Result)

• Begins with will or another modal verb like can, may, or might
• Followed by the base form of the verb

Examples:

• If it rains, we will stay at home.
• If she calls me, I will answer.
• If you eat too much, you will feel sick.

Distinction from Other Conditional Structures

How to Identify First Conditional

‘If’ at the Start

• Look for if at the beginning. It signals a condition.

Present Simple in Condition

• The if clause should use a present simple verb.

‘Will’ or Modals in Result

• The main clause should have will or modals like can, may, might.

Realistic Future Event

• It should describe a possible future situation.

Common Mistakes to Avoid with First Conditional Rules

Incorrect Verb Tense in If Clause

Always use present simple in the if clause, not future tense.

• Correct: If it rains, we will stay home.
• Incorrect: If it will rain, we will stay home.

Misplacing the Comma

Use a comma only when the if clause comes first.

• Correct: If you study, you will pass.
• Correct: You will pass if you study.
• Incorrect: You will pass, if you study.

Using ‘Will’ in Both Clauses

The word will must appear only in the main clause, not in the if clause.

• Correct: If she calls, I will answer.
• Incorrect: If she will call, I will answer.

Using First Conditional for Unreal Situations

Do not use the first conditional for imaginary or impossible events. Use it only for real and possible future situations.

• Correct: If I finish early, I will help you.
• Incorrect: If I were rich, I will buy a car. (Use second conditional here)

Confusing ‘If’ with ‘When’

Use if for conditions, not when. “If” suggests uncertainty. “When” suggests certainty.

• Correct: If he comes, we will eat together.
• Incorrect: When he comes, we will eat together. (only correct if you’re sure he will come)

20 Example Sentences of First Conditional

• If it rains, we will cancel the picnic.
• If you study, you will pass the test.
• If she calls, I will answer.
• If they invite us, we will go.
• If I wake up late, I will miss the bus.
• If you don’t eat, you will get hungry.
• If he drives fast, he might crash.
• If we leave now, we will catch the train.
• If it gets cold, I will wear a jacket.
• If she finishes her work, she can rest.
• If you touch that wire, you will get shocked.
• If they win, they will celebrate.
• If you don’t water the plants, they will die.
• If we hurry, we can be on time.
• If I see him, I will tell him.
• If the sun shines, we will go swimming.
• If you read more, you will improve.
• If she gets sick, she might stay home.
• If you forget, I will remind you.
• If the store closes, we will come tomorrow.

FAQs:

You May Also Like

• Mixed Conditionals
• Second Conditional Sentences with Examples
• Third Conditional Sentences with Examples
• First Conditional Worksheets with Answers
• Second Conditional Worksheets with Answers