Today we are looking at the present perfect, and the present perfect continuous.

今天，我们要学习现在完成时和现在完成进行时。

Those are the differences between the present perfect and the present perfect continuous.

这些是现在完成时和现在完成进行时之间的差异。

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。

Please make a sentence using the present perfect tense.

请以现在完成式的时态造句。

Don't confuse this structure with the present perfect.

不要把这个结构和现在完成时混淆。

Nice use of the present, perfect.

很好地运用了现在完成时。

So it's just the present perfect with 'would' in front of it.

就是在“would”之后加现在完成时。

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。

The present perfect is often associated with a number of adverbs.

现在完成时经常和很多副词连用。

Probably here, we would use the present perfect, right?

大概在这里，我们会用现在完成时。

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。

But the present perfect had different uses in the past.

但是现在完成时在过去有不同的用法。

We cannot use the present perfect conditional.

我们不能使用现在完成条件句。

We use the present perfect and the present perfect continuous for both finished and unfinished actions.

我们用现在完成时现在完成进行时表示完成和未完成的动作。

Other grammar experts have explored the present perfect in a slightly different way.

其他语法专家以一种略微不同的方式探索了现在完成时。

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。

Well, when it comes to grammar, you'll probably start with the present perfect.

语法上，你可能会从现在完成时开始。