Past Perfect Tenses

Past perfect
Past perfect continuous

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I had never seen such a beautiful beach before I went to Baia do Sancho.
I did not have any money because I had lost my wallet.
Tony knew Santos so well because he had visited the city several times.
Had Sue ever studied Portuguese before she moved to Brazil?
She only understood the movie because she had read the book.
Kristine had never been to an opera before last night.
We were not able to get a rental car because we had not booked in advance.
A: Had you ever visited Egypt before 2006?
B: Yes, I had been there twice.

They had been talking for over an hour before Tony arrived.
Mike wanted to sit down because he had been standing all day at work.
James had been teaching at the university for more than a year before he started teaching English.
A: How long had you been living in Texas before you moved to Houston?
B: I had not been living there very long.