If clauses

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What is an 'if clause'?

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An 'if clause' is a conditional statement that expresses a condition and its possible outcome, often used to discuss hypothetical situations.

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What is the structure of a first conditional sentence?

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The first conditional structure is: If + present simple, will + base verb. It is used for real and possible situations.

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What is the structure of a second conditional sentence?

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The second conditional structure is: If + past simple, would + base verb. It is used for hypothetical situations that are unlikely to happen.

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What is the structure of a third conditional sentence?

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The third conditional structure is: If + past perfect, would have + past participle. It is used for hypothetical situations in the past that did not happen.

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Example of a first conditional sentence.

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If it rains, I will stay home.

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Example of a second conditional sentence.

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If I had a million dollars, I would travel the world.

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Example of a third conditional sentence.

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If I had known about the party, I would have gone.

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What does 'unless' mean in conditional sentences?

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'Unless' means 'if not' and is used to introduce a condition that must be met for the main clause to be true.

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How do you form a negative conditional sentence?

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To form a negative conditional sentence, use 'if' + subject + negative verb form (e.g., If I do not study, I will fail).

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What is the difference between 'will' and 'would' in conditional sentences?

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'Will' is used for real future situations, while 'would' is used for hypothetical or unreal situations.