1
be + adjective
系表结构，表示状态或特征。
She is happy.
她很高兴。
助动词
been — past participle of be · irregular form
先理解核心含义，再看它在真实句子里的用法。
助动词
As an auxiliary verb:
She is happy.
她很高兴。
作为助动词
As an auxiliary verb:
作为系动词
As a copulative verb:
作为不及物词汇动词
As an intransitive lexical verb:
be
Base
原形
is
3rd person
第三人称单数
being
-ing
现在分词
was
Past
过去式
been
Past participle
过去分词
He is a teacher.
他是一名老师。
She was happy.
她很高兴。
They have been friends.
他们一直是朋友。
She is a teacher.
她是一名老师。
They were happy yesterday.
他们昨天很开心。
I am ready for the exam.
我为考试准备好了。
系表结构，表示状态或特征。
She is happy.
她很高兴。
表示身份或类别。
He is a doctor.
他是一名医生。
表示位置或地点。
They are in the park.
他们在公园里。
存在句，表示某处有某物。
There is a book on the table.
桌子上有一本书。
Not this
*I happy.
Use this
I am happy.
中文里没有系动词，但英语中形容词作表语时必须加be动词。
Not this
*He be a student.
Use this
He is a student.
be动词需要根据主语人称和数变化，第三人称单数用is，不能直接用原形be。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
即将
I was about to leave when the phone rang.
我正要离开时电话响了。
害怕
She is afraid of spiders.
她害怕蜘蛛。
意识到
He was not aware of the danger.
他没有意识到危险。
对…感兴趣
Are you interested in music?
你对音乐感兴趣吗？
对…负责
Who is responsible for this project?
谁对这个项目负责？
应该
You are supposed to finish your homework.
你应该完成作业。
尽管如此
Be that as it may, I still think we should proceed.
尽管如此，我仍然认为我们应该继续。
全神贯注地听
Tell me your story—I'm all ears.
告诉我你的故事——我洗耳恭听。
处境相同
We're all in the same boat when it comes to the deadline.
在截止日期这件事上，我们处境相同。
生存还是毁灭，这是一个问题。
I want to be a better person.
我想成为一个更好的人。
成为你希望在世界上看到的改变。
She will be happy to see you.
她见到你会很高兴。
Use been naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象蜜蜂（bee）说'我是（be）蜜蜂'，记住be表示'是'和'存在'。
释义：是，成为；存在。语境：任何场合（正式/非正式）。语域：中性。注释：be动词是最基础的系动词，适用于所有语境。
系动词，连接主语和表语
Dictionary facts from ECDICT, WIKTIONARY.