So when should you use the present perfect tense?

那么什么时候应该用完成时呢？

The present perfect simple and continuous tenses.

完成时完成进行时。

You can connect your past experience to the present using the present perfect tense.

你可以用你过去的经验联系起来，使用完成时。

A couple of weeks ago, I created a lesson about the present perfect tense.

几周前，做了一个关于完成时的课程。

Please make a sentence using the present perfect tense.

请以完成式的时态造句。

Sentence one uses the simple past tense. Sentence two uses the present perfect tense.

第一句用的是一般过去时，第二句用的是完成时。

I've used the present perfect tense here.

这里用了完成时。

Present perfect tense, where would have we used the third form of forgive.

这里用的是完成时态，所以们要用“forgive”的完成时。

The grammar you will hear at that point often includes the present perfect tense.

这时你会听到的语法往往包括完成时态。

The verb " being" should be replaced with " been" to form the present perfect continuous tense correctly.

动词“being”应该用“been”代替，以形成正确的完成进行时。

With time, you will learn how to apply the present perfect continuous tense to any sentence.

随着时间的推移，你将学会如何将完成进行时应用到任何句子中。

The perfect tenses by which I mean the present perfect and the past perfect tenses are quite challenging.

指的是完成时过去完成时的完成时态是相当具有挑战性的。

There is a lot to think about when using the present perfect tense, right?

是不是感觉这个“完成时”还是有很多不太好掌握的地方呢？

We need to change the time expression too for our sentence to work in the present perfect tense.

由一般过去时转换为完成时，们就需要转换句子中时间的表达方式。

Now, both of these questions are really important questions when you're using the present perfect tense in English.

所有这些问题都是你使用完成时时非常重要的问题。

I think once or twice in your essay, you want to use the past perfect tense or the present perfect tense.

认为你的作文中可以使用一两次过去完成时或完成时。

Even though the present perfect tenses can be frustrating at times, be patient while you're perfecting it.

尽管完成时有时会很烦人，但当你完善它时耐心一点。

In the present perfect tense, the main verb is in past participle form, not in past simple form.

完成时句子的主动词是过去分词形式，而不是过去完成形式。

Both of these words are used with the present perfect tenses and the past perfect tenses.

所有这些词都可以用于完成时过去完成时。

Let’s look at one more way to use the present perfect tense.

让们再看看使用完成时的另一种方法。