Past perfect signal words

Past perfect signal words

Signal words: after, before, when.

Examples past perfect signal words:

I had eaten my breakfast before I went to school.
Before we read the book, we had bought the book.
We did our homework after we had seen a film.
After he had sent an email, he got an answer.
When he left school, he had learned for years.
When she arrived in London, she had waited for hours.

English Past perfect exercises

The past perfect refers to a time earlier than before now. So the past perfect is used to make clear that one action happened before another in the past. 

Online exercises English grammar and courses
Free tutorial Past perfect. English Past perfect exercises. English grammar easy to learn. Past perfect matching exercises, English word order.