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The Copula 'là' (Identifying Nouns)

Use 'là' as an equals sign to connect a subject to a noun identity, never a description.

Grammar Rule in 30 Seconds

Use 'là' to equate two nouns, like saying 'A is B'.

  • Use 'là' to identify people: Tôi là giáo viên (I am a teacher).
  • Use 'là' to define objects: Đây là cái bàn (This is a table).
  • Never use 'là' with adjectives: Use 'rất' instead.
Subject + là + Noun

مرور کلی

Welcome to your first big step in Vietnamese. Meet . This little word is the backbone of your identity.
In English, we use to be for everything. We say
I am a teacher
and I am happy. But Vietnamese is a bit more picky. The word is used ONLY to identify things.
Think of it like a specialized tool. You use it to connect two nouns. It works like an equals sign in math.
It says that A is the same thing as B. If you want to say your name, you need . If you want to tell someone your job, grab .
It is simple, powerful, and very common. Most beginners try to use it for everything. We are going to make sure you use it like a pro.
Let's dive in and master this essential word together.

این گرامر چطور کار می‌کنه

Imagine you are holding two cards. One card says tôi (I/me). The other card says người Mỹ (American).
To glue them together, you need . Without it, you just have two separate ideas. In Vietnamese, acts as the bridge between subjects and nouns.
It does not change based on the person. In English, we change am to is or are. In Vietnamese, stays exactly the same. Whether you are talking about yourself, your cat, or a bowl of phở, the word never shifts.
It is incredibly stable. It only cares about one thing: identification. It tells the listener what something is.
It defines the world around you. Think of it as your verbal ID card. It is the most honest word in the language.

الگوی ساخت

1
Building a sentence with is like playing with Lego blocks. You follow a very strict order. Here is how you do it:
2
Start with the Subject. This is the person or thing you are talking about. Examples: tôi (I), anh ấy (he), đây (this).
3
Add the word . This is your connector.
4
Finish with the Noun. This is the identity or name. Examples: sinh viên (student), Lan (a name), bánh mì (bread).
5
If you want to say no, just add không phải before .
6
Positive: Subject + + Noun.
7
Negative: Subject + không phải là + Noun.
8
It is a straight line. No hidden surprises. No complicated conjugations to memorize. Just three steps and you are speaking Vietnamese.

کی استفاده کنیم

Use when you are defining something. Use it in these real-world scenarios:
  • Introducing yourself: When you meet someone at a party. Tôi là [Your Name].
  • Stating your profession: During a job interview in Hanoi. Tôi là bác sĩ (I am a doctor).
  • Identifying objects: While shopping at a local market. Đây là cái gì? (What is this?).
  • Talking about nationality: When checking into a hotel. Tôi là người Úc (I am Australian).
  • Defining concepts: Hạnh phúc là gia đình (Happiness is family).
Think of as a spotlight. It shines on a noun to tell everyone what it is. If you can put an equals sign between the two parts, you should probably use .
It is your best friend for introductions and explanations. Even native speakers use it hundreds of times a day. It is the ultimate identity button.

کی استفاده نکنیم

This is where most learners trip up. Do not use with adjectives! In English, we say
The coffee is hot.
In Vietnamese, you just say Cà phê nóng. No allowed. If you say Cà phê là nóng, it sounds very strange. It is like saying
Coffee is the definition of hotness.
  • Avoid with feelings: Tôi vui (I am happy), not Tôi là vui.
  • Avoid with descriptions: Cô ấy đẹp (She is beautiful), not Cô ấy là đẹp.
  • Avoid with locations: Tôi ở nhà (I am at home), not Tôi là ở nhà.
Think of as a Noun Only club. Adjectives and locations are not invited to this party. If you see a word describing a quality, keep in your pocket. It is a common mistake, but you are smarter than that. Just remember: Nouns only!

اشتباهات رایج

Even smart people make mistakes. One big one is using for everything is does in English. If you say Tôi là đói, you are literally saying
My name is Hungry.
Your friends might laugh and offer you a snack. Another mistake is forgetting không phải in negatives. You cannot just say Tôi không là. You must use the full phrase không phải là.
Sometimes people forget entirely when it IS needed. Tôi giáo viên is understandable but sounds like Me teacher. It is caveman speak. Don't be a caveman. Use the bridge!
Also, watch out for word order in questions. Don't move around. Keep it in the middle. Vietnamese grammar is like a traffic light; follow the signals and you won't crash. Take it slow and focus on the noun connection.

مقایسه با الگوهای مشابه

In many languages, the verb to be is a giant. In Vietnamese, the to be function is split into three parts.
  1. 1: Used for Nouns (Identity).
  2. 2: Used for Locations (Where things are).
  3. 3Zero Copula: Used for Adjectives (Descriptions).
Think of it like different shoes. You wear boots for hiking through identities. You wear sandals for walking to locations. You go barefoot (no word) for adjectives.
Spanish speakers might compare to ser. It is for permanent or defining traits. But even that isn't perfect. The best way to remember is: Noun?
Use . Not a noun? Stop and think.
This distinction is what makes Vietnamese sound rhythmic and clear. Once you master this split, you are halfway to sounding like a local.

سؤالات رایج

Q

Can I use to say I am at the store?

No, use for locations.

Q

Do I need to change for they or we?

Nope! It stays for everyone.

Q

Is formal or informal?

It is both. It is a neutral, essential word.

Q

Can I skip in fast speech?

Sometimes in very casual slang, but as a beginner, keep it in. It helps people understand you better.

Q

What if I'm describing a noun?

If the main point is a description (The big car), don't use . If you are identifying it (This is a big car), then use .

Q

Does mean is, am, and are?

Yes, it covers all of them, but only for nouns!

The 'là' Structure

Subject Copula Noun Phrase
Tôi
giáo viên
Bạn
bạn tôi
Anh ấy
kỹ sư
Cô ấy
bác sĩ
Chúng tôi
sinh viên
Họ
người Việt

Meanings

The copula 'là' acts as an identity marker, equating a subject to a noun phrase.

1

Identification

Defining who or what someone/something is.

“Tôi là người Việt.”

“Đây là nhà của tôi.”

2

Classification

Categorizing an object or concept.

“Tiếng Việt là ngôn ngữ thú vị.”

“Cái này là quà tặng.”

Reference Table

Reference table for The Copula 'là' (Identifying Nouns)
Form Structure Example
Affirmative
S + là + N
Tôi là bác sĩ
Negative
S + không là + N
Tôi không là bác sĩ
Question
S + có phải là + N + không?
Bạn có phải là bác sĩ không?
Short Yes
Là, tôi là bác sĩ
Short No
Không phải
Không phải, tôi là giáo viên

طیف رسمیت

رسمی
Tôi là sinh viên.

Tôi là sinh viên. (Self-introduction)

خنثی
Tôi là sinh viên.

Tôi là sinh viên. (Self-introduction)

غیر رسمی
Tớ là sinh viên.

Tớ là sinh viên. (Self-introduction)

عامیانه
Mình là sinh viên.

Mình là sinh viên. (Self-introduction)

The 'là' Identity Map

People

  • Tôi I
  • Bạn You

Objects

  • Đây This
  • Kia That

مثال‌ها بر اساس سطح

1

Tôi là học sinh.

I am a student.

2

Đây là sách.

This is a book.

1

Anh ấy là bác sĩ của tôi.

He is my doctor.

2

Đó là một ý tưởng hay.

That is a good idea.

1

Hà Nội là thủ đô của Việt Nam.

Hanoi is the capital of Vietnam.

2

Mục tiêu của tôi là học tiếng Việt.

My goal is to learn Vietnamese.

1

Sự kiên trì là chìa khóa của thành công.

Perseverance is the key to success.

2

Người mà bạn gặp hôm qua là sếp của tôi.

The person you met yesterday is my boss.

1

Điều quan trọng nhất là chúng ta phải đoàn kết.

The most important thing is that we must unite.

2

Lý do tôi đến đây là để tìm hiểu văn hóa.

The reason I came here is to learn about the culture.

1

Cái mà anh ấy gọi là nghệ thuật thực chất chỉ là sự sao chép.

What he calls art is actually just a copy.

2

Là một người lãnh đạo, trách nhiệm của bạn là rất lớn.

As a leader, your responsibility is great.

به‌راحتی اشتباه گرفته می‌شود

The Copula 'là' (Identifying Nouns) در مقابل là vs ở

Learners use 'là' for location.

The Copula 'là' (Identifying Nouns) در مقابل là vs có

Learners use 'là' for possession.

The Copula 'là' (Identifying Nouns) در مقابل là vs Adjectives

Learners use 'là' before adjectives.

اشتباهات رایج

Tôi là vui

Tôi rất vui

Do not use 'là' with adjectives.

Tôi bác sĩ

Tôi là bác sĩ

Need 'là' to link noun to noun.

Anh ấy là ở nhà

Anh ấy ở nhà

Do not use 'là' for location.

Cái này là đẹp

Cái này đẹp

Adjectives don't need 'là'.

Tôi không là bác sĩ

Tôi không phải là bác sĩ

Use 'không phải' for negation.

Ai là?

Ai đó?

Cannot end a sentence with 'là'.

Việc đó là khó

Việc đó khó

Adjective predicate.

Nó là ở đây

Nó ở đây

Locative error.

Tôi là có xe

Tôi có xe

Possession error.

Vấn đề là quan trọng

Vấn đề quan trọng

Adjective predicate.

Là một người tốt, anh ấy giúp tôi

Là một người tốt, anh ấy đã giúp tôi

Tense consistency.

Đó là không đúng

Đó không phải là đúng

Negation structure.

الگوهای جمله‌سازی

Tôi là ___.

Đây là ___.

___ là bạn của tôi.

Real World Usage

Social Media constant

Tôi là một người yêu du lịch.

Job Interview very common

Tôi là ứng viên cho vị trí này.

Texting common

Đây là địa chỉ của mình.

💡

Keep it simple

Don't overthink it. Just put 'là' between two nouns.
⚠️

No adjectives

If you want to say 'I am tall', just say 'Tôi cao'.
🎯

Use 'không phải' for negation

It sounds much more natural than just 'không là'.

Smart Tips

Always use 'là' followed by your noun/role.

Tôi giáo viên. Tôi là giáo viên.

Drop the 'là' and use the adjective directly.

Tôi là buồn. Tôi buồn.

Use 'có phải là' for a polite question.

Bạn là bác sĩ? Bạn có phải là bác sĩ không?

تلفظ

la (low pitch)

Tone

The word 'là' has a grave tone (huyền), meaning it starts low and stays low.

Statement

Tôi là bác sĩ ↘

Falling intonation for facts.

حفظ کنید

روش یادسپاری

Think of 'là' as a 'Label'. It puts a label on a person or thing.

تداعی تصویری

Imagine a giant equals sign (=) glowing in the middle of your sentence.

Rhyme

When you identify who you are, use 'là' to take you far.

Story

Nam is a student. He says 'Tôi là học sinh'. He points to a book and says 'Đây là sách'. Everyone understands because he used 'là'.

شبکه واژگان

tênngườisinh viênbác sĩcái nàyđó

چالش

Introduce yourself to a mirror using 'Tôi là [Name]' and 'Tôi là [Job]'.

نکات فرهنگی

Often used very precisely in formal settings.

Sometimes shortened in very casual speech.

Derived from ancient Austroasiatic roots for identity.

شروع‌کننده‌های مکالمه

Bạn là ai?

Đây là cái gì?

Công việc của bạn là gì?

موضوعات نگارش

Write 5 sentences introducing yourself.
Describe 3 items on your desk.
Who is your favorite person and why?

اشتباهات رایج

Incorrect

صحیح


Incorrect

صحیح


Incorrect

صحیح


Incorrect

صحیح

Test Yourself

Fill in the blank.

Tôi ___ bác sĩ.

✓ Correct! ✗ Not quite. Correct answer:
Identity requires 'là'.
Which sentence is correct? چند گزینه‌ای

Select the correct sentence.

✓ Correct! ✗ Not quite. Correct answer: Tôi vui.
Adjectives don't take 'là'.
Reorder the words. Sentence Reorder

Arrange the words in the correct order:

All words placed

Click words above to build the sentence

✓ Correct! ✗ Not quite. Correct answer: Tôi là sinh viên
SVO order.
Translate to Vietnamese. ترجمه

He is a teacher.

Answer starts with: Anh...

✓ Correct! ✗ Not quite. Correct answer: Anh ấy là giáo viên
Identity requires 'là'.

Score: /4

تمرین‌های عملی

4 exercises
Fill in the blank.

Tôi ___ bác sĩ.

✓ Correct! ✗ Not quite. Correct answer:
Identity requires 'là'.
Which sentence is correct? چند گزینه‌ای

Select the correct sentence.

✓ Correct! ✗ Not quite. Correct answer: Tôi vui.
Adjectives don't take 'là'.
Reorder the words. Sentence Reorder

là / sinh viên / Tôi

✓ Correct! ✗ Not quite. Correct answer: Tôi là sinh viên
SVO order.
Translate to Vietnamese. ترجمه

He is a teacher.

✓ Correct! ✗ Not quite. Correct answer: Anh ấy là giáo viên
Identity requires 'là'.

Score: /4

سوالات متداول (6)

No, it is invariant.

No, use 'ở'.

No, never.

Use 'không phải là'.

Only when identifying nouns.

Rarely, it's better to keep it for clarity.

Scaffolded Practice

1

1

2

2

3

3

4

4

Mastery Progress

Needs Practice

Improving

Strong

Mastered

In Other Languages

Spanish high

ser

Spanish conjugates; Vietnamese does not.

French high

être

French requires agreement; Vietnamese is invariant.

German moderate

sein

German has complex conjugation.

Japanese moderate

desu

Japanese is SOV; Vietnamese is SVO.

Arabic low

huwa

Arabic uses pronouns for copula.

Learning Path

Prerequisites

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