Pasado perfecto como se forma cuando se usa y ejemplo?

To form a sentence in the Past Perfect Tense, start with the subject followed by the auxiliary verb ‘to have’ conjugated in the past simple.

Then, use the past participle form of the main verb.

Subject + had + past participle

Here are a few examples :

He had jumped into the water before she told him how cold it was.

They hadn’t locked the door before their friend arrived.

Had you already seen the monkeys when the safari ended?

I had finished the race before he was halfway finished.