First and Second Conditionals
Conditional sentences help us talk about possibilities, hypothetical situations, and their consequences. The first and second conditionals are two of the most commonly used patterns in English.
First Conditional
The first conditional is used to talk about real and possible situations in the future. We use it when we think something is likely to happen.
Alternative: will + base verb + if + present simple
When to Use the First Conditional
Use the first conditional when you want to:
1. Talk about future possibilities that are realistic
2. Make predictions based on a condition
3. Give warnings or advice
Example: If it rains, we can stay inside and watch a movie.
Second Conditional
The second conditional is used to talk about hypothetical, imaginary, or unlikely situations in the present or future. These situations are either impossible or we think they probably won’t happen.
Alternative: would + base verb + if + past simple
When to Use the Second Conditional
Use the second conditional when you want to:
1. Talk about hypothetical situations in the present or future
2. Give advice
3. Talk about dreams and wishes
You can also use “could” or “might” instead of “would”: If I had a car, I could drive to work.
Key Differences
If it rains tomorrow, I will stay home. (It might rain — this is possible)
If it rained money, I would be rich. (This is impossible or very unlikely)
Check Your Understanding
Complete this quiz to test your knowledge of first and second conditionals.