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We are going to study the third conditional in English.

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So, first of all, when do we use the third conditional?

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We use it when we want to talk about situations that are impossible to happen.

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Because we are referring to the past, hypotheses in the past.

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And how do we form the third conditional?

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the sentence that goes with if

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use the past perfect had plus past participle

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if I had studied

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in the other sentence

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we use would plus have plus past participle

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I would have passed the exam

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so if I had studied

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I would have passed the exam

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is one option with comma

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I would have passed the exam if I had studied the other option without a comma.

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So let's now compare the three conditionals that we have already studied.

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First conditional, remember that it's formed with present in the if sentence and will in the other sentence.

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If I have money, I will buy a modern cell phone.

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If I don't have money, negative, I won't buy a modern cell phone.

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If my mother travels to Spain, she will have a good job.

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Question, what would you do if you fail the next exam?

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If I fail the next exam, I'll feel sad.

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Let's go with the second conditional.

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Remember that it's formed with past and but plus verb.

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Here you have the examples.

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If I won the lottery, I would buy a really nice fast car.

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If I had two heads, I would wear two hats.

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If I saw an alien, I would run away really quickly

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If I lived in China, I would eat my food with chopsticks

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If I put salt in my coffee, I would not taste very good

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If I ate 20 hamburgers, my stomach would explode

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If I went to the moon, I wouldn't breathe easily

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If I didn't practice so much, I wouldn't play the piano very well

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And now let's go with examples of the third conditional.

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Remember that the if sentence goes with past perfect

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and the other one with would plus have plus past participle.

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If I had got a gold medal, I would have been happy.

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If the weather had been good, we would have gone water skiing.

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If you hadn't lied, you wouldn't have ended up in prison.

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Now you can practice.

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you