- Before I met her I had a poor opinion of her.
As person had a poor opinion before a particular time in past (before He met her) so I think there should be had had.
There are some more example like this:
Before I went to the university, I worked/had worked as a carpenter for 5 years.
Before I opened the door, I put/had put the key in the lock.
Before I opened the door, I looked/had looked carefully into the barn for snipers.
In all these sentence, for me, it should be perfect tense.
I asked that question on another platform where I was told that if sequence of past event is obvious and sentences uses "before"and "after", we often use past tense. Which means we should use past tense in all these sentences. But I have another sentence "The train had left before I reached the station." If I follow above mentioned rule there should be "left" instead of "had left". But I am damn sure this sentence is correct with "had left".
Am I correct?