Chinese Grammar

How to Use 是 (shì): “I Am” Made Simple

Introduce yourself, ask a simple question, and avoid one common mistake with 是—all through everyday examples.

By Fluent Chinese··3 minutes read

Meeting someone new? One little word helps you say who you are: 是 (shì).

It often means “am,” “is,” or “are,” but it does not replace every English “be.”

1. Say who or what something is · 是什么

Use: Subject + 是 + noun or noun phrase.

wǒ shì xuésheng.
我是学生。
I am a student.
tā shì wǒ de péngyou.
她是我的朋友。
She is my friend.
zhè shì chá.
这是茶。
This is tea.

Good news: 是 stays the same with 我, 你, and 他/她. No “am/is/are” changes to memorize!

2. Say “is not” · 不是

Put 不 before 是.

zhè bú shì kāfēi, zhè shì chá.
这不是咖啡,这是茶。
This isn't coffee. It's tea.

3. Turn it into a conversation · 问一问

Add 吗 to the end of a statement to make a yes/no question.

nǐ shì xuésheng ma?
你是学生吗?
Are you a student?
shì de, wǒ shì xuésheng.
是的,我是学生。
Yes, I'm a student.

You can also ask 你是不是学生? (nǐ shì bu shì xuésheng?)—“Are you a student?” Use either 是不是 or 是……吗 for this simple question; you don't need both.

4. One useful trap to avoid · 小心这个错误

For a simple description such as “I'm busy,” Chinese normally uses an adjective without 是.

wǒ hěn máng.
我很忙。
I'm busy.

Compare: 我是学生。 identifies your role; 我很忙。 describes your state.

很 often makes a simple adjective sentence sound natural; it does not always strongly mean “very.” Don't translate “I'm busy” word for word as 我是忙。

Your turn · 轮到你了

Say “She's my friend” and “This isn't coffee” out loud, then open the answers.

Answer 1
tā shì wǒ de péngyou.
她是我的朋友。
She's my friend.
Answer 2
zhè bú shì kāfēi.
这不是咖啡。
This isn't coffee.

Now make it personal: 我是____。 Introduce your job or role in one sentence. You've already started a conversation.

Further reading