Flying High
Grammarly Definition: The past perfect is a verb tense used to talk about actions that were completed before some point in the past.
Past Perfect is... the action before the action before.
Read the next paragraph. All the underlined verbs are in past perfect.
When I arrived home yesterday, I got a big surprise.
The cat had knocked over the birdcage.
It had flown to the top of the window.
The cat had ripped the curtains trying to get it.