We'd had problems with the new manager.
We had problems with the new manager.

May I know what's the difference between these two sentences? Thanks.

Question

We'd had problems with the new manager.
We had problems with the new manager.

May I know what's the difference between these two sentences? Thanks.

Answer

1 - past perfect: used to describe a situation in the past that happened BEFORE another situation in the past. "We'd had problems with the new manager, so we GAVE her extra training".

2 - Straight forward action in the past.