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Lesson 46: Unit 102 - Third Conditional

The lesson looks at conditional sentences of the third type (Third Conditional) – the structure "If + Past Perfect, would have + past participle" – for expressing hypothetical past situations that dif

About this lesson

In this lesson you will learn how to build Third Conditional sentences with the formula "If + Past Perfect, would have + past participle". You will understand that this type of sentence describes hypothetical past events – situations completely different from what really happened. Through texts about an adventure on the beach and about Donna's unusual weekend you will practise the structure in context. You will also practise using "be able to" instead of "can/could" with the perfect infinitive, and you will be introduced to the idea of the Mixed Conditional.

40 minutes

What you'll learn

  • Build Third Conditional sentences correctly with 'If + Past Perfect, would have + past participle'
  • Understand that the Third Conditional expresses hypothetical past situations that differ from reality
  • Use 'be able to' instead of 'could' with the perfect infinitive in the Third Conditional
  • Transform real past situations into Third Conditional sentences
  • Recognise the Mixed Conditional, when the condition is in the past and the result is in the present

Lesson vocabulary

  • tide The children suddenly realized that the tide was coming in.
  • explore The children had asked their parents to let them explore the nearby bay.
  • manage to Peter managed to swim back and raised the alarm.
  • raise the alarm If Peter hadn't managed to swim back, he wouldn't have raised the alarm.
  • exhausted If Dona hadn't been so busy in her work, she wouldn't have been exhausted.
  • purse She couldn't go shopping because she had left her purse at home.
  • traffic jam There were terrible traffic jams, and she was late for the concert.
  • arrange She was late for the concert they had arranged to go to.
  • mild She heard his mild voice and fell in love.
  • love at first sight She saw his handsome face and fell in love. It was love at first sight!
  • weather forecast If I had heard the weather forecast, I wouldn't have gone out.
  • avoid If the children had noticed the time, they would have avoided the tide.
  • fail to The children failed to notice the time passing.
  • be able to If the water hadn't been so deep, they would have been able to go back to their parents.
  • stranger A stranger stopped her to ask the time.

All lessons in this level

In other languages: Български