| First action | Second action |
|---|---|
| had dispersed | reached the market |
First action: had dispersed. Second action: reached the market. This row is already filled in for you in the book.
What the past perfect tense is, in one line: when two things happened in the past, the one that happened first is written with had + the third form of the verb.
In this sentence, the crowd went away before we got there. So the crowd going away is the first action, and it is written as had dispersed. Our reaching the market is the second action, and it is written in the simple past — reached.
| Action | Which came first? | Form used |
|---|---|---|
| had dispersed | First | past perfect (had + dispersed) |
| reached the market | Second | simple past (reached) |