I have problem with understanding why we have put this sentence in the past perfect tense.
Harold had known about it for a while
There is no two actions one happened before the other like when we include before and after. Can we say harold had know about it for a while?
I ask because there is no two action happening. Past perfect should be about two action happened in the past one finished and then another action happened with some period of time between them e.g.:
- I had brushed my teeth before I went to bed.
- By the time you came I had left.