Nice use of the present, perfect.

很好地运用了现在完成时。

The present perfect simple and continuous tenses.

现在完成时和现在完成进行时。

The present perfect verb here is " have lost" .

这里表示现在完成式的动词是" have lost" 。

I've used the present perfect tense here.

我在这里用了现在完成时。

We've got the present perfect continuous.

我们看到了现在完成进行时。

It's the present perfect and you can't use 'when' with the past simple and the present perfect.

这是现在完成时，“when”和一般过去时和现在完成时不能一起使用。

He used the present perfect verb " have woken up" .

他使用的是动词的现在完成时" have woken up" 。

Please make a sentence using the present perfect tense.

请以现在完成式的时态造句。

Here's the final use for the present perfect.

下面是现在完成时的最后一种用法。

Now, try to change it to the present perfect yourself.

现在，尝试将一般过去时转换为“现在完成时”。

So when should you use the present perfect tense?

那么什么时候应该用现在完成时呢？

The present perfect continuous has a use that is the same as the present perfect simple.

现在完成进行时有个用法，这个用法和现在完成时是一样的。

The word " have" in the phrase is part of the present perfect verb tense.

该短语中的" have" 是动词的现在完成时的一部分。

Today we are reviewing the present perfect and past perfect verb tenses.

今天我们要复习现在完成时和过去完成时动词时态。

And the present perfect continuous; I have been working for three hours today.

然后是现在完成进行时；我今天已经工作了三个小时。

So you would respond using the present perfect or the present perfect continuous.

所以你会用现在完成时或现在完成进行时来回答。

This is the present perfect continuous, the past perfect uses had.

这是现在完成进行时，过去完成时使用的是 had。

But we use the present perfect because they're important now.

但我们用现在完成时是因为它们现在很重要。

American and British English speakers use the present perfect verb tense in similar ways.

英式英语和美式英语在现在完成式的使用上是比较相似的。

She uses the continuous form, the present perfect, and many other types of grammar.

她使用了进行时、现在完成时和许多其他类型的语法。