Third Conditional

The Third Conditional

Published on: 08/04/2019 By
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Once you’ve studied and feel confident about using the zero, first and second conditionals, you’re ready to study the third and last one. Being able to use the third conditional will really make you sound like a native speaker. So read on to find out when to use it and how.

 

When do we use the third conditional?

The third conditional is used to express the past consequence of an unrealistic action or situation in the past.

For example,

  • If he had studied harder, he would have passed the exam.

The first action (studying hard) did not happen. But in the case that he happened, the consequence was passing the exam. The third conditional is very similar to the second conditional. But while the second conditional refers to something unrealistic now or in the future, the third conditional refers to something unrealistic in the past.

We often use the third conditional to express regrets – describing things we are sorry happened or didn’t happen. For example,

  • If my alarm had gone off, I wouldn’t have been late to work.
  • If there hadn’t been so much traffic we wouldn’t have missed our flight.

 

How do we create the third conditional?

To make a sentence in the third conditional, we use,

 

If + past perfect, would/wouldn’t have + past participle.

  • If you had told me about the meeting, I would have come.
  • If you had told me about the meeting, I wouldn’t have missed it.

 

As with all conditionals, you can also invert this structure:

Would have + past participle if + past perfect.

  • I’d have come to the meeting if you’d told me about it.
  • I wouldn’t have missed the meeting if you’d told me about it.

 

The word would is often contracted to ‘d by native speakers. It’s also acceptable to use this in informal writing. And in speech it’s common to contract have to ‘ve in the third conditional. For example,

  • I’d’ve come to the meeting if you’d told me.

However, we can’t write this, even in an informal context. It’s useful to be aware of it though, so you can identify it when native speakers say it.

As an alternative to would, we can complete the second part of a third conditional sentence with could. For example,

  • If I’d stayed at university, I could have got a masters degree.

 

Here are some other examples of the third conditional:

  • He’d have got the job if he hadn’t been so nervous in the interview.
  • What would you have done if you’d been me?
  • If it hadn’t been snowing heavily, we’d have carried on skiing.
  • The company would have survived if there hadn’t been a recession.
  • Would you have accepted the offer if we’d reduced the price?
  • If you hadn’t invited me out, I’d have stayed in all day.
  • She wouldn’t have given you a fine if you’d apologized.
  • If they hadn’t won that match, the club would have fired the manager.
  • They could have stayed here if they hadn’t found any accommodation.

 

Mixing the second and the third conditionals

It’s possible to combine the second and the third conditionals. There are two ways of doing that. We can either,

Describe the present consequence of a past situation

If + past simple, would have + past participle

  • If I were adventurous, I’d have gone backpacking after university.

Describe the past consequence of a present situation

If + past perfect, would + verb

  • If we hadn’t missed the flight, we’d be in our hotel by now.

Here are some more examples,

  • If I’d studied for a year in the U.S, my English would be fluent now.
  • The roads wouldn’t be so icy if it hadn’t rained so much last night.
  • If she weren’t so shy, she’d have gone to the party on her own.
  • The fans would be miserable now if their team had been relegated.

 

The third conditional has quite a tricky structure that takes some time and practice to become familiar with. So why not start now by doing a fun quiz.

 

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Mary Milne avatar

Mary Milne

Author of this post

Mary Milne has worked for Wall Street English for 20 years. After studying at the University of Bristol and subsequently doing a CELTA course, she began her career in teaching. Over the years she has gained a wealth of knowledge and experience in ESL and has worked as an Online Community Manager, and author for Wall Street English International and Pearson, writing informative educational content. She dedicates most of her free time to music, playing in a band and singing in a choir.

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