Mỗi người đều mang quần áo đã qua sử dụng.

Mỗi người means each person or everyone, depending on how naturally you translate it in English.

• mỗi = each, every
• người = person

Vietnamese often puts the topic or subject first, so Mỗi người comes at the start to show who the sentence is about.

So the structure begins with:

• Mỗi người = each person / everyone

Đều adds the idea of all of them do this or without exception.

In sentences with words like mỗi, ai cũng, or plural subjects, đều is often used to emphasize that something applies to everyone in the group.

So:

• Mỗi người mang... = Each person wears/carries...
• Mỗi người đều mang... = Every single person wears/carries...

In English, we often do not translate đều directly, but it makes the Vietnamese sentence sound more complete and natural.

Yes. It is a very common pattern.

A useful structure is:

• Mỗi + noun + đều + verb

Examples:

• Mỗi người đều biết. = Everyone knows.
• Mỗi ngày tôi đều học. = Every day I study.

So in your sentence, Mỗi người đều... is a normal and useful pattern to remember.

This is a very good question, because many learners know mặc as the usual verb for to wear clothes.

In standard Vietnamese:

• mặc = wear clothing
• mang = carry, bring, or in some contexts wear certain things

So if the intended meaning is wear clothes, many learners would expect:

• Mỗi người đều mặc quần áo đã qua sử dụng.

That is often the more straightforward standard phrasing.

However, mang can sometimes be used in the sense of wear, depending on region, style, or context. Still, with quần áo, mặc is generally the safer and more standard choice for learners.

So this sentence may sound a little less expected than one with mặc, unless the context specifically supports mang.

Yes, mang can mean carry or bring, so without context it may feel a little ambiguous.

Common meanings of mang include:

• to carry
• to bring
• to wear, in some cases

That is why context matters. If the meaning shown to the learner is wear used clothes, then you should understand mang that way here. But if you saw this sentence without context, you might pause and wonder whether it means carry used clothes.

Literally, it means something like:

• quần áo = clothes
• đã qua sử dụng = have already been used

So the full phrase is clothes that have been used before, which is a natural way to say used clothes or second-hand clothes.

This is a very common Vietnamese way to describe something as used:

• xe đã qua sử dụng = a used vehicle
• đồ đã qua sử dụng = used items
• quần áo đã qua sử dụng = used clothes

No. Here, đã does not make the whole sentence past tense.

This is important.

In đã qua sử dụng, the word đã is part of the description of the clothes. It means the clothes are already used / previously used.

So:

• the main sentence is not necessarily in the past
• đã belongs to the phrase describing quần áo

You can think of quần áo đã qua sử dụng as one noun phrase:

• clothes that have already been used

So the sentence is about people and the kind of clothes they wear/carry, not about an action that happened in the past.

It is a modifier that comes after the noun it describes.

Vietnamese often puts descriptive information after the noun:

• quần áo mới = new clothes
• quần áo đẹp = beautiful clothes
• quần áo đã qua sử dụng = clothes that have been used before

Breaking it down:

• đã = already
• qua = pass through
• sử dụng = use

Literally, đã qua sử dụng is something like already passed through use. In natural English, that becomes used or second-hand.

Because Vietnamese usually places modifiers after the noun.

English:

• used clothes

Vietnamese:

• quần áo đã qua sử dụng

This is a very common difference between English and Vietnamese. Compare:

• a beautiful house → ngôi nhà đẹp
• an old book → quyển sách cũ
• used clothes → quần áo đã qua sử dụng

So the word order in the sentence is normal Vietnamese word order.

Yes, it could be omitted, but the meaning would become slightly less emphatic.

Compare:

• Mỗi người đều mang quần áo đã qua sử dụng.
• Mỗi người mang quần áo đã qua sử dụng.

Both are understandable. But đều helps reinforce the sense of everyone / every person without exception. In many contexts, it makes the sentence sound more natural and complete.

Quần áo is a collective expression meaning clothes. In English, clothes is plural in form, and in Vietnamese quần áo refers to clothing in a general sense.

It is made from:

• quần = pants
• áo = shirt/top

Together, quần áo means clothing / clothes.

Vietnamese nouns usually do not change form for singular or plural the way English nouns do, so you understand the number from context.

Often, yes, depending on the tone.

• quần áo cũ = old clothes / used clothes
• quần áo đã qua sử dụng = used clothes, in a more formal or careful way

The phrase đã qua sử dụng sounds more formal, neutral, or official. You might see it in advertisements, product descriptions, charity contexts, or formal writing.

By contrast:

• quần áo cũ sounds more everyday and conversational

So the sentence has a somewhat formal feel because of đã qua sử dụng.

The pattern is:

• Mỗi người = subject
• đều = marker emphasizing all/every
• mang = verb
• quần áo đã qua sử dụng = object / noun phrase

So the structure is:

Subject + đều + verb + object

That makes the sentence easy to analyze as:

• Every person
• all
• wears/carries
• used clothes