Trong phòng có nhiều người.

Vietnamese often puts the location first in sentences like this.

So the pattern is:

Trong phòng + có + nhiều người
in the room + there is/are + many people

This is a very common way to say that something exists somewhere.

You can think of it as:

In the room, there are many people.

The location-first pattern is especially natural when you are introducing what is present in a place.

Here, có means there is / there are / exists.

It does not mean have in this sentence, even though có often does mean have in other contexts.

Examples:

• Tôi có tiền. = I have money.
• Trong phòng có nhiều người. = There are many people in the room.

So có is very flexible, and the meaning depends on the structure around it.

Because Vietnamese does not always use a verb like English to be.

In English, you need:

There are many people in the room.

In Vietnamese, the existential idea is expressed with có, so you do not add a separate word for are.

That is why:

• Trong phòng có nhiều người is correct.
• A direct word-for-word translation using English grammar would sound unnatural in Vietnamese.

Vietnamese usually does not use articles like a, an, or the.

So phòng can mean:

• a room
• the room

The exact meaning depends on context.

In Trong phòng có nhiều người, phòng could mean:

• in the room if both speakers already know which room
• in a room if the room is not specific

Context tells you which one is meant.

It can mean person or people, depending on context.

Vietnamese nouns usually do not change form for singular and plural the way English nouns do.

So:

• một người = one person
• nhiều người = many people

The quantity word tells you whether it is singular or plural.

Nhiều means many and người means person/people.

So:

nhiều người = many people

The order is:

quantity word + noun

This is normal in Vietnamese.

Examples:

• nhiều sách = many books
• nhiều xe = many vehicles/cars
• nhiều người = many people

Because Vietnamese nouns do not usually change form for plural.

English:

• person
• people
• book
• books

Vietnamese:

• người can be singular or plural depending on context
• sách can be singular or plural depending on context

Plurality is usually shown by:

• numbers: ba người = three people
• quantity words: nhiều người = many people
• context

Yes, you can, and it is understandable.

But Trong phòng có nhiều người is often more natural when you want to emphasize the location first or describe what is in the room.

Compare:

• Trong phòng có nhiều người.
  = In the room, there are many people.

• Có nhiều người trong phòng.
  = There are many people in the room.

Both are correct, but the first one is a very common descriptive pattern in Vietnamese.

Usually yes, phòng means room, but in different contexts it can be part of larger expressions, such as:

• phòng học = classroom
• phòng ngủ = bedroom
• văn phòng = office
• phòng khách = living room

By itself, phòng usually means room.

So Trong phòng simply means in the room or inside the room.

No, not in this sentence.

Người itself is the noun person/people, and after nhiều, you simply say:

nhiều người

You do not add an extra classifier here.

For learners, the safest thing is to remember this chunk as a standard phrase:

nhiều người = many people

Yes. A common way is:

Trong phòng có rất nhiều người.

Here, rất adds emphasis, so:

• nhiều người = many people
• rất nhiều người = a lot of people / very many people

That version sounds very natural.

A rough pronunciation guide is:

Trong phòng có nhiều người
≈ chawng fawng gaw nyeeu ngwee

That is only approximate, because Vietnamese pronunciation depends heavily on tones and regional accent.

A few useful notes:

• trong = inside/in
• phòng has a falling tone
• có has a rising tone
• nhiều has a falling tone on the first part
• người has a falling tone

If you are learning pronunciation, it is best to hear this from native audio, because tones matter a lot more than English-style spelling approximations.