Name: 現在完成時和現在完成時連續 - 英語語法教程視頻課程 (Present Perfect and Present Perfect Continuous - English grammar tutorial video lesson)
Uploaded: 2021-01-14T05:17:21.000Z
Duration: 2 min 31 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

Welcome to Englishgrammarspot. This tutorial is about the present perfect

I'm going to show you how to form and when to use a present perfect

and how to form and when to use a present perfect continuous.

I have worked since 5 o'clock in the morning.

I have been working since 5 o'clock in the morning.

The first sentence is in the present perfect tense,

the second sentence is in the present perfect continuous tense.

First we are going to take a look at how to form a present perfect.

For the regular verbs we use the auxiliary verb to have and a past participle.

can be made by adding -ed to the base form of the verb.

we also use the auxiliary verb to have and a past participle

but here the past participle has its own unique form.

She has driven in my car. The infinitive form of the verb is 'to drive.'

A present perfect continuous is made by the auxiliary verb to to have and been which is the

the past participle form of the verb 'to be.'

We use the base from of the verb and we add 'ing.'

Please note that we do not need to pay attention to the regular and irregular verbs.

Now let's have a look at the difference between the two.

A present perfect is used for a thing, which can either be an activity or a state

which started in the past and has continued into the present. For example

I have broken my leg and I have talked to him.

A present perfect continuous is used for an activity that started in the past and has

We cannot say: I have been breaking my leg.

we also use the present perfect continuous when talking about things that

He has been shouting at me for over half an hour.

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