Conversación past perfect. 

Alejandro: Had you taken the keys before I got here?

Luisa: I had left them on the table, right there.

Alejandro: Oh I hadn´t seen them, thanks!

Luisa: Jack had put a cake into the fridge. Is it still there?

Alejandro: Yes. Had Shirley and Edgar brought the beef for the barbecue?

Luisa: Sure, and I had already bought the sodas three days ago.

Alejandro: Great. I had thought that this plan would never be ready.

Luisa: Neither I had!

Alejandro: By the way, hadn´t mom called yesterday?

Luisa: Oh yes! she had just before I dialed your number.

Alejandro: Had Carole tried to contact me?

Luisa: Oh no, I don´t think so.