The first conditional - is used to talk about possible future events., The second conditional - is used to talk about unlikely (imaginary or unreal situations) future events., The third conditional - is used to talk about past events that didn’t happen (regrets!)., Wish - a desire to do something, or to have something., The zero conditional - is used to make statements about the real world, and often refers to general truths, such as scientific facts,

If Clauses Purpose revision

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