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

今天，学习现在完成和现在完成进行。

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

现在完成经常和很多副词连用。

So when should you use the present perfect tense?

那么什么候应该用现在完成呢？

And so I have a lot of present perfect here.

所以在这里使用了很多现在完成。

I've worked as an accountant for eight years?

就已经做会计 8 年了（用现在完成）。

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开始。

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

大概在这里，会用现在完成。

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

事实上，用现在完成进行好主意。

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

" How long" 经常用于现在完成。

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

并且他已经专门造好了一艘新潜艇，have built 现在完成。

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

今天复习现在完成和过去完成动词态。

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的方式探索了现在完成。

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的一般用法。

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

这现在完成进行，过去完成使用的 had。

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

你可以用你过去的经验和现在联系起来，使用现在完成。

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

但最后一问题可以条件句现在完成或过去完成。

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

记住，说过现在完成用于经历，所以使用那语法。

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

对于现在完成进行，无论有没有间段都不紧。

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

你需使用现在完成，而不进行式，来谈论你一天的结果。

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

今天，会学习一很多人都觉得很难的态，现在完成。