" Div" commonly replaces the auxiliary verb " do" .

“Div”通助动词“do”。

'Do' is the auxiliary verb, or help verb.

“do”是助动词，或帮助动词。

He also didn't stress the auxiliary verbs.

他也没有重读助动词。

So it is not a helping or auxiliary verb.

所以它不是助动词或辅助动词。

What's another auxiliary verb? " Have" , isn't it?

还有其他助动词吗？“Have”，对吧？

Let's first talk about dropping the auxiliary verb.

我们先来谈谈省略助动词。

The main auxiliary verbs are be, have, and do.

主要的助动词有 be，have，和 do。

It's because does is an auxiliary verb.

那是因为does是一个助动词。

The auxiliary verb is moved in front of the subject.

助动词要移到主语前。

So to form the question you need an auxiliary verb.

所以要形成问句，你需要一个助动词。

So auxiliary verbs are grammatical words.

助动词是语法词。

Rule number three: modal verbs are auxiliary verbs.

情态动词是助动词。

So are auxiliary verbs such as BE or DO.

BE 或 DO 等助动词也是如此。

Helping or auxiliary verbs are also used along with a main verb.

助动词或辅助动词也与主动词一起使用。

In this structure, the auxiliary verb " should" comes before the subject " you" .

在这个结构中，助动词 should 出现在主语 you 之前。

British English speakers often add the auxiliary verb " do" in short replies.

说英式英语的人经在简短回答中加入助动词 do。

It's C because it has an auxiliary verb!

是第三句，因为它用了助动词！

They use an auxiliary verb only, but short answers are possible.

它们只用助动词，但是可以简短回答。

Make careful note of how they do not stress helping, or auxiliary verbs.

请特别注意他们没有重读助动词。

Your examples use it as an auxiliary verb, also known as a helping verb.

在你们的例子中，do都作助动词。