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  3. Conditionals: third and mixed

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

Try another grammar lesson
Average: 4.2 (103 votes)

Submitted by gsgxxiii on Mon, 22/03/2021 - 12:45

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For conditional 3, can I not use 'if'? For example: Had I understood the instructions properly, I would have passed the exam.

Submitted by Graziadb1966 on Sun, 21/03/2021 - 08:34

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‘If I could change the way I live my life today, I wouldn’t change a single thing’ song by Lisa Stanfiled... is this a second conditional given that the If clause uses a modal verb? Shouldn’t it be if I changed ..., I wouldn’t ...? Maybe just because it a song? What about ‘If I could, I surely would’ (also a song by Simon & Garfunkel’s)?

Hello Graziadb1966,

It's perfectly fine to use certain modal verbs in the if-clause of conditional sentences. In your example 'could change' has the meaning 'were able to change' and so it expresses a different meaning to just 'changed'.

 

Here are a few other examples of modal verbs used in if-clauses:

  • If + should - expressing a sense of something happening to the subject which he or she cannot control: If I should die, think only this of me: That there's some corner of a foreign field That is for ever England. [The Soldier, Ruperb Brooke].
  • If + will - expressing a sense of agreement/being willing to do something: If he will speak to us, I think we can persuade him.
  • If + can - expressing a sense of possibility: If he can get the documents to me by tonight, I will sign them.

 

Peter

The LearnEnglish Team

Submitted by Iman ELBorolos on Thu, 04/03/2021 - 10:46

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Hello, I am confused between conditionals. Did you mean that :if something started in the past and its effect extend to the present we will use if+past perfect ----would+infinitive but if something started and end in the past and i wish to change it in the past we will use if +past simple--------would have=past participle please help and advise.
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Submitted by Peter M. on Sat, 06/03/2021 - 07:49

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Hello Iman ELBorolos,

The difference is not really about something continuing or not - I think this is a confusing way to try to describe it. Rather, it's about whether the result is in the past or the present. For example:

1. If I had worked hard, I would have passed my exams.

I didn't work hard (unreal past condition); I didn't pass my exams (unreal past result)

2. If I had passed my exams, I would have a good job now.

I didn't pass my exams (unreal past condition); I don't have a good job (unreal present result)

 

Peter

The LearnEnglish Team

Submitted by gsgxxiii on Tue, 23/02/2021 - 17:14

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Peter made a mistake and he told John about it. John kept the secret for some time. Presently, John tells Mary about it. In this context, do I use conditional 2 or 3: He knew, if they found out, they would fire him or He knew, if they had found out, they would have fired him

Hello gsg238

Who tells whom and when is irrelevant here as 'he' in your sentences is speculating about the situation.

The first example (found out - would fire) is about the future. He is concerned about a possible, if unlikely, act by his employer in the future.

The second example (had found out - would have fired) is about the past. In this example, he is sure that they do not know as he has not been fired. This sentence means in effect the following: they did not find out because otherwise I would not have a job now.

 

Peter

The LearnEnglish Team

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Submitted by Ahmed Imam on Sat, 30/01/2021 - 11:13

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Hello. Are the following two sentences correct? If so, what is the difference between them? - If I am checking the report, I don't answer any calls. - If I am checking the report, I won't answer any calls. Thank you.