Second and third conditionals: Unreal conditionals
Master hypothetical situations in the present and past.
- check_circleI can talk about imaginary present and future situations using the second conditional.
- check_circleI can talk about imaginary past situations using the third conditional.
Discover
Meet today's English in a real situation — no rules yet. Read it once and try to guess the pattern in the words in bold. Underlined words open a short definition.
Alex: I can’t believe we missed the train! If we had left the house ten minutes earlier, we would have caught it.
Sam: I know, I know. But if I didn’t have to pack everything at the last minute, we wouldn’t be in this mess right now.
Alex: Well, if you had packed your bags last night like I suggested, we would be on our way to the beach already!
Sam: True. I’m sorry. If I were more organized, this catastrophe wouldn’t happen every time we travel.
Alex: Let’s look for another option. If we rented a car, we could still get there by sunset. But the car rental places are probably closed today.
Sam: Yeah, and if we had booked a rental car yesterday, it would have been so much cheaper. I guess we’ll just have to wait for the next train and salvage what’s left of the day.
Alex: Agreed. Let’s get some coffee. If I hadn’t rushed out without breakfast, I wouldn’t be so famished!
Learn
Now the rules behind what you just saw — explained simply, with examples. Underlined words open a short definition — hover on desktop, tap on a phone.
We use conditionals to talk about causes and consequences. When we talk about situations that are imaginary, unlikely, or hypothetical, we use the second and third conditionals.
The main difference between them is time: the second conditional is about the present or future, while the third conditional is entirely about the past.
1. The Second Conditional (Unreal Present/Future)
We use the second conditional to talk about imaginary situations in the present or future, and their results. These are things that are not true right now, or are very unlikely to happen.
Structure:
If + Past Simple, would + base verb
- If I had a million dollars, I would buy a house on the beach. (I don’t have a million dollars now).
- If she spoke Japanese, she would apply for that job in Tokyo. (She doesn’t speak Japanese).
In the second conditional, it is common and correct to use were instead of was for all subjects (I, he, she, it).
- If I were you, I would study more.
2. The Third Conditional (Unreal Past)
We use the third conditional to talk about imaginary situations in the past. These are things that did not happen, so it’s impossible to change them. We often use it to express regret or criticism.
Structure:
If + Past Perfect, would have + past participle
- If I had studied harder, I would have passed the exam. (I didn’t study hard, and I didn’t pass).
- If we had left earlier, we wouldn’t have missed the flight. (We left late, and we missed the flight).
Common Mistake Do not use would in the if clause.
If I would have known, I would have helped you.- If I had known, I would have helped you.
Mixing conditionals
Sometimes, a past action has a present consequence. In these cases, we can mix the third conditional (for the past cause) and the second conditional (for the present result).
- If I had taken that job in London (past), I would live in the UK now (present).
This kind of combination gives us a lot of leeway to express complex thoughts about how our past choices affect our current reality.
- Second Conditional:
If + Past Simple, would + base verb(Imaginary present/future). - Third Conditional:
If + Past Perfect, would have + past participle(Imaginary past). - You can use could or might instead of would to show possibility or ability.
- Never put would inside the if clause.
Practice
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Use It
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