Tôi mang thẻ căn cước đến chi nhánh.

The structure is:

Tôi + mang + thẻ căn cước + đến chi nhánh

That is:

subject + verb + object + destination/place

So it follows a word order that feels fairly familiar to English speakers:

I + bring/carry + ID card + to the branch

Vietnamese verbs do not change form for tense the way English verbs do.

So mang can mean:

• bring / am bringing
• brought
• will bring

The exact time usually comes from context or from extra words such as:

• đã for past
• đang for ongoing action
• sẽ for future
• time expressions like hôm qua, hôm nay, ngày mai

For example:

• Tôi đã mang thẻ căn cước đến chi nhánh. = I brought the ID card to the branch
• Tôi sẽ mang thẻ căn cước đến chi nhánh. = I will bring the ID card to the branch

Here, mang means to carry or to bring along.

It suggests that you have something with you and take it somewhere.

Some related verbs are:

• mang = carry, bring along
• đem = bring, take, very similar and often interchangeable with mang
• cầm = hold in the hand
• đưa = hand over, deliver, take someone/something to someone

So in this sentence, mang works well because the speaker is taking the ID card along to the branch.

thẻ means card.

căn cước refers to identity or identification.

So thẻ căn cước means ID card or identity card.

In Vietnam, you may also hear related terms such as:

• căn cước công dân = citizen ID card
• chứng minh nhân dân = older term for national ID card

Vietnamese often leaves out possessive words when the meaning is already clear from context.

Since the subject is tôi, listeners will usually understand that this is the speaker’s ID card.

If you want to make it explicit, you can say:

Tôi mang thẻ căn cước của tôi đến chi nhánh.

But this is often unnecessary unless you want to emphasize ownership.

đến means to, toward, or to arrive at in this kind of sentence.

chi nhánh means branch, usually a branch office of a bank, company, or organization.

So đến chi nhánh means:

• to the branch
• to a branch

The exact English choice depends on context, because Vietnamese does not use articles like the or a.

Yes, in many cases you can.

đến and tới are often interchangeable and both can mean to or arrive at.

So this is also natural:

Tôi mang thẻ căn cước tới chi nhánh.

In many situations, đến sounds slightly more neutral or standard, but both are common.

Vietnamese does not have articles like English.

That means chi nhánh could mean:

• the branch
• a branch

The listener figures it out from context.

If you want to be more specific, you can add more detail, for example:

• chi nhánh ngân hàng = bank branch
• chi nhánh đó = that branch
• chi nhánh gần nhà tôi = the branch near my house

Yes, but the emphasis may change.

The original sentence focuses on the action of bringing the ID card:

Tôi mang thẻ căn cước đến chi nhánh.

A different version is:

Tôi đến chi nhánh mang theo thẻ căn cước.

This feels more like:

• I go to the branch, bringing my ID card with me

Both are understandable, but they highlight slightly different parts of the message.

Often, yes.

mang theo means bring along or carry with you, so it can sound a little more explicit and natural in everyday speech.

For example:

Tôi mang theo thẻ căn cước đến chi nhánh.

This makes it especially clear that the speaker is bringing the ID card along with them.

The shorter mang is still correct and natural.

You usually know from context.

By itself, chi nhánh just means branch office. It does not say what kind of branch it is.

If the speaker wants to be specific, they can add a noun after it, such as:

• chi nhánh ngân hàng = bank branch
• chi nhánh công ty = company branch

So the sentence may be fully clear in a real conversation because both speakers already know which branch is being discussed.