Can you explain about Conditional Sentence Type 3 along with example?

The third conditional is used to indicate the unrealistic situation in the past, that means an impossible condition referring to past. In this type, past is time and situation is not real. For example: If I had her phone number, I would have called her for the party. Here; [ If I had her phone number ] is a If Clause [ I would have called her for the party ] is Main Clause. Sentence form:- If Clause (had+past participle) Main Clause (would+have+past participle) In If Clause we use {Past Perfect Tense} and for Main Clause we use {Conditional Perfect}.