|Structure of the third conditional|
|If I’d (I had) known you were coming, I would have waited for you.||If she hadn’t (had not) been ill, she would have gone to the cinema.||Would you have done it if you’d (you had) known earlier?|
|The third conditional – common mistakes|
|Common mistakes||Correct version||Why?|
|If I had asked him, he would have helped me.||In the if-clause we use the past perfect (had + pastparticiple). We don’t use ‘would’ or ‘would have’ in the if-clause.|
|If you had spoken to my mother, she would have toldyou where I was.||The main clause has
would + have + past participle.