Conditionals: third and mixed

Conditionals: third and mixed

Do you know how to use third conditionals and mixed conditionals? Test what you know with interactive exercises and read the explanation to help you.

Look at these examples to see how third and mixed conditionals are used.

We would have walked to the top of the mountain if the weather hadn't been so bad.
If we'd moved to Scotland when I was a child, I would have a Scottish accent now.
If she was really my friend, she wouldn't have lied to me.

Try this exercise to test your grammar.

Grammar test 1

Conditionals 2: Grammar test 1

Read the explanation to learn more.

Grammar explanation

Do you know how to use third and mixed conditionals?

Third conditionals and mixed conditionals

Conditionals describe the result of a certain condition. The if clause tells you the condition (If I hadn't been ill) and the main clause tells you the result (I would have gone to the party). The order of the clauses does not change the meaning.

If I hadn't been ill, I would have gone to the party.
I would have gone to the party if I hadn't been ill.

Conditional sentences are often divided into different types.

Third conditional

The third conditional is used to imagine a different past. We imagine a change in a past situation and the different result of that change.

If I had understood the instructions properly, I would have passed the exam.
We wouldn't have got lost if my phone hadn't run out of battery.

In third conditional sentences, the structure is usually: If + past perfect >> would have + past participle.

Mixed conditionals

We can use mixed conditionals when we imagine a past change with a result in the present or a present change with a result in the past.

1. Past/Present 

Here's a sentence imagining how a change in a past situation would have a result in the present.

If I hadn't got the job in Tokyo, I wouldn't be with my current partner.

So the structure is: If + past perfect >> would + infinitive.

2. Present/Past

Here's a sentence imagining how a different situation in the present would mean that the past was different as well.

It's really important. If it wasn't, I wouldn't have called you on your holiday.

And the structure is: If + past simple >> would have + past participle.

Do this exercise to test your grammar again.

Grammar test 2

Conditionals 2: Grammar test 2

Average: 4.3 (159 votes)
Profile picture for user Nyan Htoo Pai

Submitted by Nyan Htoo Pai on Sat, 10/05/2025 - 10:46

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  • Mix conditional sentence: I've been tired of learning English lately. If I could go back in time, I would have done all home work my teacher gave me. 
  • Mix conditional sentence: If she had done all the work yesterday, she would be playing golf with her friend today.
  • Second conditional sentence: If fish had wings, they would fly all over the sky.
  • Third conditional sentence: If she had know about this man, she wouldn't have married him.
  • Would you please correct my sentences if you find any grammatical errors? Please don't forget to cheer me up if all the sentences are correct. I've put a lot of effort into them.

Hello Nyan Htoo Pai,

Most of these are fine - well done!

 

In the fourth example you should use the past participle (third form) 'known' rather than 'know'.

The first sentence is fine grammatically (in terms of the verb forms used) but I think some of the vocabulary should be changed. Here's one alternative:

I've gotten/become tired of learning English lately. If I could live my life again, I would have done all the home work my teacher gave me.

I tihnk go back in time does not work here as we would see going back in time as a present action - somthing you do now which changes the past rather than something which happened earlier in your life: if I could go back in time I would do...

 

Peter

The LearnEnglish Team

Submitted by Camelya on Fri, 09/05/2025 - 22:39

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very clear explained

"Very well explained" or "Very clear explanation" would be the correct sentence.

Submitted by ddmm on Wed, 30/04/2025 - 22:03

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that was a little bit hard ,but very useful.
Profile picture for user naw_naw

Submitted by naw_naw on Sat, 26/04/2025 - 10:19

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I wouldn't have found a good job if I hadn't moved to Thailand.

Is that correct?

Profile picture for user Nour Shekho

Submitted by Nour Shekho on Fri, 18/04/2025 - 10:20

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It is a handy and helpful site. If it wasn't, I wouldn't have spend much time studying with it.

Profile picture for user koudous1425

Submitted by koudous1425 on Sun, 13/04/2025 - 19:00

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If had known this site of British council early my English level would be better than now.is it correct please 

Hello koudous1425,

The verb forms in your sentence are fine. I'd change only a couple of small things:

If had known about this British Council site earlier, my English level would be better (than it is (now)).

 

Peter

The LearnEnglish Team