Here we see the phrasal verb " to jump over" in the past progressive form.

这里我们看到动词短语“跳过去”的过去进行时形式。

In fact, " when" is used with past progressive more often than " while" in the Corpus of Contemporary American English.

事实上，在“当代美国英语语料库”中，when比while更常与过去进行时连用。

Usually, when we use past continuous or past progressive, we use it for telling a story.

通常，当我们使用过去进行时或过去进行时，我们用它来讲故事。

So, if you have a progressive sentence, we have present progressive, past progressive, and future progressive.

所以，如果你有一个进行式句子，我们有现在进行式、过去进行式和将来进行式。