【Math学能中心】小学英语语法丨be 动词的时态变化!

be 动词是小学英语的基础考点，很多孩子容易混淆 am/is/are 和 was/were 的使用场景，时态一混做题就出错。

学能老师梳理好现在时、过去时两套变化、句式要点以及易错提醒，配上例句方便理解，搞定单选和句型转换，适合孩子整理复习📌。

核心口诀

现在 am is are，过去 was were；

将来 will be，完成 have/has been！

> be 动词原形：be；变形：am, is, are, was, were, been, being

一、各时态 be 动词变形总览

1. 一般现在时（am /is/are）

人称搭配：

- I → am

- he /she/it / 单数名词 → is

- you /we/they / 复数名词 → are

✅肯定：I am… / He is… / They are…

❌否定：am not /isn’t /aren’t

❓疑问：Am I…? / Is he…? / Are they…?

例句：

I am a student. 我是一名学生。

She is happy. 她很开心。

You are my friend. 你是我的朋友。

2. 一般过去时（was /were）

- I /he/she /it/ 单数 → was

- you /we/they / 复数 → were

✅肯定：He was at home.

❌否定：wasn’t = was not；weren’t = were not

❓疑问：Was he…? / Were you…?

例句：

I was busy yesterday. 我昨天很忙。

They were in the park last Sunday. 上周日他们在公园。

3. 一般将来时（will be /be going to be）

结构：will + be**（will 后面必须用原形 be）

   am/is/are going to + be**

✅肯定：He will be free tomorrow.

明天他将会有空。

It is going to be rainy. 将要下雨。

❌否定：will not be = won’t be

❓疑问：Will you be…?

> ❗易错：will 后面不能用 is/are/was，只能用原形 be

> ❌ He will is tall.  ✔ He will be tall.

4. 现在完成时（have /has been）

结构：have/has + **been**（be 的过去分词）

- I/you/we/they → have been

- he/she/it → has been

含义：已经是；曾经去过；已经处于某种状态

He has been ill for two days. 他已经病两天了。

I have been to Beijing. 我去过北京。

5. 现在进行时（am /is/are being）

结构：am/is/are + **being**（be 的现在分词）

多表示 “此刻表现出…… 样子”

He is being quiet. 他这会儿很安静。

📋表格速记

⚠️高频易错点

1. will、to 的后面，be 动词**必须还原为原形 be**，不能写 is/are/was

✅ will be　❌ will is

✅ going to be　❌ going to are

2. was‑were 不要混淆：只要主语是 you/we/they/ 复数，过去一律用 were

3. be 动词句型**不要加 do/does/did**！

❌ Do you are tall?

✅ Are you tall?

📝随堂小练习（答案在下）

用 be 动词适当形式填空

1. I ______ ten years old now.

2. They ______ at school yesterday.

3. She ______ will ______ here tomorrow.

4. He ______ ill last week.

5. We ______ always ______ good friends.（现在完成时）

答案：1.shtu  2.were  3.be  4.was  5.have; been