Quantity Expressions in Vietnamese

In Brief

Vietnamese quantity words normally come before the noun phrase: nhiều người “many people,” mỗi ngày “every day,” and đủ tiền “enough money.” A classifier (a counting word placed before a noun) is often unnecessary after nhiều, ít, and một số, but is common or required in patterns such as mỗi cuốn sách, vài cái bánh, and mấy người.

Overview

Quantity expressions say how much or how many of something there is. At A2, the most useful words are nhiều (many or much), ít (few or little), mỗi (each or every), tất cả (all), một số (some or a number of), vài (a few), and đủ (enough). The question forms bao nhiêu and mấy let you ask about an unknown quantity.

This area feels both easy and unfamiliar to an English-speaking learner. Vietnamese does not change the quantity word according to whether the following noun is countable: nhiều sách and nhiều thời gian use the same word, while English divides “many” from “much.” Vietnamese nouns also do not normally receive a plural ending. Number is understood from words such as nhiều, vài, or tất cả and from context.

The extra feature to watch is the classifier: a short word that groups a noun for counting, such as cái for many objects, cuốn or quyển for books, and con for many animals. If you have already studied Vietnamese classifiers, quantity phrases show where they may appear and where natural speech often leaves them out.

How It Works

The basic position

The beginner pattern is:

quantity word + (classifier) + noun

• nhiều người — many people
• ít thời gian — little time
• mỗi cuốn sách — each book
• vài cái ghế — a few chairs

The parentheses mean that a classifier depends on the quantity word and the noun. Do not apply one single classifier rule to every expression.

The main quantity words

Expression	Core meaning	Typical pattern	Example
nhiều	many, much; a lot	nhiều + noun or nhiều + classifier + noun	nhiều việc — a lot of work
ít	few, little; not much	ít + noun or ít + classifier + noun	ít người — few people
mỗi	each, every	mỗi + classifier/unit + noun	mỗi sinh viên — each student
tất cả	all	tất cả + noun phrase; or used alone	tất cả học sinh — all students
một số	some, a number of	một số + noun	một số câu hỏi — some questions
vài	a few, several	vài + (classifier) + noun	vài người — a few people
đủ	enough	đủ + noun; đủ + adjective/verb	đủ tiền — enough money
bao nhiêu	how many, how much	bao nhiêu + (classifier) + noun	bao nhiêu tiền? — how much money?
mấy	how many; usually a small expected number	mấy + (classifier) + noun	mấy giờ? — what time?

Nhiều and ít: count and mass together

A count noun names things that can be counted separately, such as people or books. A mass noun names something treated as an amount, such as money or water. English often uses different words for the two groups, but Vietnamese does not:

• nhiều người — many people
• nhiều nước — much/a lot of water
• ít sách — few books
• ít tiền — little/not much money

A classifier can make individual units more prominent: nhiều cuốn sách means “many books,” with cuốn explicitly counting book volumes. In ordinary general statements, nhiều sách is also possible. With common human nouns, nhiều người is natural without a classifier.

When ít directly modifies a noun, it means a small quantity: ít đường “little sugar.” In requests, một ít often corresponds to “a little” and sounds less negative: Cho tôi một ít nước “Give me a little water.”

Both words can also modify a verb or description:

• Tôi đọc nhiều. — I read a lot.
• Dạo này tôi ngủ ít. — I sleep little these days.
• Cái này ít cay hơn. — This one is less spicy.

Mỗi: one by one or every time

Mỗi distributes something across individual members of a group. This is called distributive meaning: the statement applies to each member separately.

With a clearly countable object, the common structure is mỗi + classifier + noun: mỗi cái bánh “each cake,” mỗi cuốn sách “each book.” Human nouns and familiar units often appear directly after mỗi: mỗi người “each person,” mỗi ngày “every day,” and mỗi lần “each time.”

Mỗi can be paired with đều to show that the same statement is true of every member:

• Mỗi người đều có một vé. — Each person has a ticket.
• Mỗi phòng đều có cửa sổ. — Every room has a window.

Tất cả: the whole group

Tất cả presents a set as complete. It can come before a noun phrase, stand alone when the group is already known, or serve as the topic followed by đều:

• tất cả học sinh — all students
• Tôi đã đọc tất cả. — I read everything/all of it.
• Tất cả đều đồng ý. — Everyone/all of them agree.

You will also meet tất cả các... and tất cả những.... Các points to a plural group in a fairly neutral way; những often presents a selected or contextually identified group. At A2, tất cả + noun and tất cả đều + predicate are safe core patterns. A predicate is simply what is said about the person or thing, usually the verb and the words around it.

Do not confuse mỗi and tất cả. Mỗi sinh viên có một cuốn sách focuses on one book per student. Tất cả sinh viên có sách describes the student group as a whole and does not by itself emphasize one-to-one distribution.

Một số and vài: two kinds of “some”

Một số means “some” or “a number of.” It selects an unspecified part of a larger group and is useful in neutral speech and writing:

• một số khách hàng — some customers
• một số vấn đề — a number of problems

Vài suggests a small number: “a few” or sometimes “several.” It is common in conversation:

• vài phút — a few minutes
• vài người bạn — a few friends
• vài cuốn sách — a few books

The combination một vài is also common and means “a few/some”: một vài ý kiến “a few opinions.” Do not interpret the một here as a separate count of exactly one.

Đủ: reaching the needed amount

Đủ does not give a number. It says that the required amount or degree has been reached:

• đủ tiền — enough money
• đủ chỗ — enough room/seats
• đủ lớn — big enough
• đủ để mua vé — enough to buy a ticket

With a number, đủ often means that the target total has been reached: Đủ mười người rồi “There are ten people now, which is enough.” In negative statements, không đủ means “not enough”: Tôi không đủ thời gian “I do not have enough time.”

Asking with bao nhiêu and mấy

Both expressions ask about quantity, but their expectations differ.

Bao nhiêu is unrestricted: the answer could be small, large, or an amount rather than a count. It works with people, objects, money, time, distance, and more:

• Bao nhiêu người sẽ đến? — How many people will come?
• Cái này bao nhiêu tiền? — How much is this?

Mấy usually asks for a small, manageable count or appears in conventional expressions. A classifier commonly follows it when the noun needs one:

• Bạn có mấy người con? — How many children do you have?
• Bạn mua mấy cuốn sách? — How many books did you buy?
• Mấy giờ rồi? — What time is it?

The distinction is a tendency, not a mathematical cut-off. Speakers can use bao nhiêu even when the answer is small. Choose bao nhiêu when you do not want to imply any expected range.

Examples in Context

Vietnamese	English	Note
Có nhiều người ở đây.	There are many people here.	Nhiều with a human noun; no classifier needed.
Chúng tôi không có nhiều thời gian.	We do not have much time.	The same nhiều translates English “much.”
Ít tiền quá.	That is far too little money.	Quá expresses an excessive degree.
Dạo này tôi uống ít cà phê hơn.	These days I drink less coffee.	Ít ... hơn means “less ... than/before.”
Mỗi ngày tôi học tiếng Việt một giờ.	I study Vietnamese for one hour every day.	A time unit follows mỗi directly.
Mỗi người đều có một vé.	Each person has a ticket.	Đều reinforces that this applies to everyone.
Tất cả đều đi.	Everyone went.	The group is understood, so no noun is stated.
Tất cả các cửa hàng đều đóng cửa.	All the shops are closed.	A complete plural group with các and đều.
Một số sinh viên học ở thư viện.	Some students study at the library.	An unspecified part of the student group.
Tôi cần vài cuốn sách mới.	I need a few new books.	Cuốn classifies books.
Cho tôi một ít nước, được không?	Could you give me a little water?	Một ít is natural for a small amount.
Chúng ta có đủ thức ăn cho mọi người.	We have enough food for everyone.	Đủ + noun states sufficiency.
Phòng này không đủ lớn cho mười người.	This room is not big enough for ten people.	Đủ + adjective.
Có bao nhiêu người trong gia đình bạn?	How many people are in your family?	No assumed upper range.
Bạn mua mấy cái bánh?	How many cakes did you buy?	Cái classifies the cakes; a small count is expected.

Common Mistakes

Adding an English-style plural ending

• Wrong: nhiều ngườis
• Right: nhiều người
• Why: Vietnamese nouns do not take English -s. The quantity word already signals plurality.

Forcing a classifier after every quantity word

• Awkward as a general rule: nhiều cái người
• Right: nhiều người
• Why: Classifiers are not inserted mechanically. Người naturally follows nhiều directly. Learn complete phrases rather than translating “many + classifier + noun” every time.

Omitting the classifier in a counting pattern

• Less natural in the intended count: mấy sách?
• Right: mấy cuốn sách?
• Why: When asking for a number of books, use the book classifier cuốn (or quyển). Mấy patterns much like a small-number question.

Using nhiều where English requires “much” in a negative sentence

• Wrong: avoiding nhiều because the noun is uncountable
• Right: Tôi không có nhiều tiền.
• Why: Vietnamese nhiều covers both “many” and “much.” English countability does not choose the Vietnamese word.

Treating mỗi and tất cả as identical

• Wrong for one-per-person: Tất cả người có một vé.
• Right: Mỗi người đều có một vé.
• Why: Mỗi distributes the statement person by person. Tất cả refers to the complete group and commonly appears as tất cả mọi người or tất cả ... đều.

Putting đủ after the noun by copying English

• Wrong: tiền đủ
• Right: đủ tiền
• Why: In the ordinary “enough + noun” pattern, đủ comes before the noun. Tiền đủ can occur only in a different sentence structure where tiền is the topic, for example Tiền đủ rồi “There is enough money now.”

Usage Notes

In everyday speech, context often does work that English assigns to singular and plural marking. Tôi mua sách can mean “I buy/bought a book,” “books,” or simply “I buy books,” depending on the situation. Quantity words make the intended amount clearer without changing the noun itself.

Rất nhiều means “very many” or “a great deal,” while quá nhiều commonly means “too many/much.” Likewise, quá ít means “too few/little.” Be careful: quá may also act as an emotional intensifier in exclamations, so tone and context matter.

For polite shopping questions, Cái này bao nhiêu tiền? is clear and common. Cái này bao nhiêu? is also widely understood when the topic is obviously price. With time, the fixed question Mấy giờ rồi? asks for the current clock time; bao nhiêu giờ is used in other meanings, such as asking how many hours something takes.

Beyond the Basics / Advanced Use

You do not need to master the following contrasts at A2, but they explain forms you will meet later.

Vietnamese has other words that help define a group, especially các, những, and mọi. They overlap with quantity expressions but are not interchangeable:

Form	Typical perspective	Example	Meaning
các	a plural group, often definite or general	các bạn	you all / the friends or students addressed
những	selected or contextually relevant members	những cuốn sách này	these books
mọi	every/all without exception	mọi người	everyone
mỗi	each member considered separately	mỗi người	each person
tất cả	the whole set as complete	tất cả mọi người	absolutely everyone / everyone

Quantities can also act as the focus of a comparison. Càng nhiều càng tốt means “the more, the better.” The paired structure càng ... càng ... links two changing degrees: Càng học nhiều, tôi càng hiểu rõ “The more I study, the more clearly I understand.”

In measured quantities, Vietnamese often places the number and measure word before the substance: hai lít nước “two liters of water,” một cân gạo “one kilogram of rice.” Here the measure expression performs a role similar to a classifier. Approximate quantities may use khoảng “about”: khoảng mười người “about ten people.” These patterns connect quantity expressions to the broader Vietnamese counting system.

Finally, word order can change information focus. Đủ tiền rồi announces that the amount is now sufficient. Tiền đủ rồi makes “the money” the topic and comments that it is sufficient. This topic-comment pattern is common in Vietnamese, but the beginner noun phrase remains đủ + noun.

Practice Tips

1. Make a two-column list of five count nouns and five mass nouns, then combine every item with nhiều and ít. This trains you not to copy the English many/much split.
2. Practise common nouns together with their full counting phrase: mấy cuốn sách, vài cái bánh, mỗi người. Learning the classifier inside a phrase is more reliable than memorising it alone.
3. Ask and answer paired questions with mấy and bao nhiêu: Bạn có mấy người bạn thân? and Thành phố này có bao nhiêu người? Notice how the expected scale changes.

Related Concepts

• Prerequisite: Classifiers — explains counting words such as cái, con, and cuốn that appear inside many quantity phrases.