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。

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。

So when should you use the present perfect tense?

那么什么时候应该用现在完成时呢？

And so I have a lot of present perfect here.

所以我在这里使用了很多现在完成时。

I've worked as an accountant for eight years?

就是我已经做会计 8 年了（用现在完成时）。

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。

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

大概在这里，我们会用现在完成时。

In fact, it's a good idea to use the present perfect continuous.

事实上，用现在完成进行时是个好主意。

" How long" is often used with the present perfect verb tense.

" How long" 经常用于现在完成时。

And they have built a special submarine for it, a completed achievement.

并且他们已经专门造好了一艘新潜艇，have built 是现在完成时。

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。

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方式探索了现在完成时。

These examples show you general ways in which the present perfect is used today.

这些例子向你展示了现在完成时一般用法。

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

这是现在完成进行时，过去完成时使用是 had。

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

你可以用你过去经验和现在联系起来，使用现在完成时。

But the last questions can be conditionals present or past perfect.

但最后一个问题可以是条件句现在完成时或过去完成时。

Remember, we said present perfect is for experiences, so, we use that grammar.

记住，我们说过现在完成时用于经历，所以我们使用那个语法。

Continuous, actually that doesn't matter with a time period or without.

对于现在完成进行时，无论有没有时间段都不要紧。

You need present perfect simple, not continuous, to speak about the result of your day.

你需要使用现在完成时，而不是进行式，来谈论你一天结果。

Today, we'll look a tense which many of us struggle with, the present perfect simple.

今天，我们会学习一个很多人都觉得很难时态，现在完成时。