So when should you use the present perfect tense?

那么什么候应该用现在完？

If plus present tense verb, will plus future tense verb.

“If”加上一现在，“will”加上将来态动词。

Right here, " I have been wearing" present perfect continuous, great tense.

这里，“I have been wearing”，现在完进行，很好态。

Semi-controlled could be, we've got a grammatical structure like the present simple tense.

半控可能是一个类似一现在语法结构。

Is it 'if' plus a present tense and 'will' plus an infinitive?

是不是 if 从句用现在，主句用 will 加动词原形？

You'll be using the present tenses.

你会用到一现在。

Have a listen to another example in the present tense.

请仔细听一现在用法外一个例句。

Here, the first action is in the present continuous tense.

这里，第一个动作是现在进行。

We suggest changing this sentence to the present tense to say when your birthday is.

我们建议把这个句子改现在，用来表示你生日是什么候。

Remember type 1 conditionals use the present tense and will.

请记住一类条件句使用是现在和“will”。

This year she has centered more on the present tense.

但今年，她更关注现在式。

Use do when you make a question in the simple present tense.

当你以一现在式提问，就用do。

When talking about our daily routines, we use the present simple tense.

在谈论我们日常生活，我们使用一现在。

If you don't pronounce it, then you're using the verb in the present tense.

如果你没有发出来话，那你就是在用现在。

With Unless, usually you use the present tense in the conditional clause.

使用 Unless，你通常要在条件从句中使用现在。

In this lesson, you can learn all about the present simple tense.

在本节课中，你可以学习所有关于一现在知识。

Now let's look a little more closely, starting with the present tenses.

现在让我们更详细地看，从现在态开始。

Both parts of the sentence are in the present tense.

句子两个部分都使用现在态。

Please make a sentence using the present perfect tense.

请以现在完式态造句。

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

第一句用是一过去，第二句用是现在完。