Focus now on the past perfect and the past perfect continuous.

请注意过去完成时和过去完成进行时。

What about present perfect to past perfect?

那么现在完成时变成过去完成时呢？

For example, present becomes past, and past becomes past perfect.

比如，现在时变成过去时，过去时变成过去完成时。

I had never been to, okay, past perfect.

I had never been to，过去完成时。

That's an example of the past perfect.

" had departed" 就是过去完成时。

This is the past perfect tense.

这是过去完成时。

Past perfect, we need " had" and a past participle.

过去完成时，我们需要 had 和一个过去分词。

And past perfect, I was able to add it in.

然后是过去完成时，我能够加入它。

Did you find some examples of the past perfect tense?

你找到带有过去完成时的句子了吗？

There is also the past perfect and past continuous tenses.

还有过去完成时和过去进行时。