Mã bưu chính này đúng không?

Mã bưu chính is the Vietnamese expression for postal code or ZIP code.

• mã = code
• bưu chính = postal / postal service

As a whole, it functions like one noun phrase: postal code.

In Vietnamese, demonstratives like this and that usually come after the noun.

So:

• mã bưu chính này = this postal code
• literally: postal code this

This is normal Vietnamese word order.

Đúng không? means something like:

• is it correct?
• right?
• is that right?

It is a very common way to turn a statement into a confirmation question. The speaker thinks something may be true and wants the listener to confirm it.

So the sentence is asking for confirmation that this postal code is correct.

Yes, from an English speaker’s perspective, it may feel like something is missing, but in Vietnamese this is normal.

Vietnamese often does not need a copula like to be in sentences with adjectives such as đúng (correct).

So:

• Mã bưu chính này đúng. = This postal code is correct.
• Mã bưu chính này đúng không? = Is this postal code correct?

You do not need là before đúng here.

Yes. Mã bưu chính này đúng không? and Mã bưu chính này phải không? are related, but they are not always identical in nuance.

• đúng không asks whether something is correct
• phải không often means is that right? / isn’t it?, and can sound a little broader or more general

For a postal code, đúng không is especially natural because you are checking correctness.

Common answers include:

• Đúng. = Correct / Yes.
• Đúng rồi. = Yes, that’s right.
• Không đúng. = Not correct.
• Sai rồi. = That’s wrong.
• Không, mã bưu chính đúng là... = No, the correct postal code is...

Vietnamese does not always use a direct equivalent of English yes/no in the same way. Very often, people answer by repeating the key idea:

• Đúng.
• Không đúng.

It is correct and widely understood, especially in formal or standard usage.

Depending on region, situation, or habit, you may also see or hear:

• mã bưu điện
• English-influenced terms in some contexts

But mã bưu chính is a solid standard choice for postal code.

This is a yes-no confirmation question.

The pattern is:

[statement] + đúng không?

So:

• Mã bưu chính này đúng. = This postal code is correct.
• Mã bưu chính này đúng không? = Is this postal code correct?

This pattern is extremely common in Vietnamese conversation.

No. Vietnamese does not usually invert word order the way English does.

English:

• This postal code is correct.
• Is this postal code correct?

Vietnamese:

• Mã bưu chính này đúng.
• Mã bưu chính này đúng không?

The basic statement stays in the same order, and the question is created by adding không or a question pattern such as đúng không.

Here, không is part of the fixed confirmation pattern đúng không?

On its own, không can mean no, not, or help form questions. In this sentence, it helps create the sense of:

• correct or not?
• right?

So đúng không? is not just a random combination; it is a very common spoken pattern.

Yes, if the context already makes it clear which postal code you mean.

Compare:

• Mã bưu chính này đúng không? = Is this postal code correct?
• Mã bưu chính đúng không? = Is the postal code correct?

Including này makes it more specific, usually when you are pointing to or referring to a particular postal code.

A few things may be tricky for English speakers:

• mã has a tone, and tone matters
• bưu has a vowel combination that may take practice
• chính also has its own tone
• đúng begins with đ, which is not the same as plain d in Vietnamese spelling
• không has the kh sound, like a breathy velar sound, not exactly like English k

Also, Vietnamese is tonal, so saying the right consonants and vowels is not enough; the tones are part of the word.

Yes, it sounds natural and useful, especially in situations like:

• filling out a form
• confirming shipping information
• checking an address
• verifying details with customer service

It is a straightforward, polite way to ask whether a postal code is correct.