be动词怎么用

be动词是英语中最常用的动词之一，用于表示存在、状态、身份、特征等。

一般现在时：

I am (我是)

You are (你是)

He/She/It is (他/她/它是)

We are (我们是)

You are (你们是)

They are (他们是)

一般过去时：

I was (我是)

You were (你是)

He/She/It was (他/她/它是)

We were (我们是)

You were (你们是)

They were (他们是)

进行时：

I am being (我正在做...)

You are being (你正在做...)

He/She/It is being (他/她/它正在做...)

We are being (我们正在做...)

You are being (你们正在做...)

They are being (他们正在做...)

完成时：

I have been (我已经做了...)

You have been (你已经做了...)

He/She/It has been (他/她/它已经做了...)

We have been (我们已经做了...)

You have been (你们已经做了...)

They have been (他们已经做了...)