Huấn luyện viên và các cầu thủ ở sân vận động.

Vietnamese often does not use a separate verb like English to be in sentences about location.

So:

• Huấn luyện viên và các cầu thủ = the coach and the players
• ở sân vận động = at the stadium

Together, that naturally means The coach and the players are at the stadium.

In English, you need are. In Vietnamese, you usually do not.

Here, ở shows location. In this sentence, it means something like:

• at
• in
• or to be at / to be in

So ở sân vận động means at the stadium.

A useful thing to know is that ở can also be used in other contexts, such as living/staying somewhere, depending on the sentence. But here it is simply marking where the people are.

Các is a common plural marker. It shows that cầu thủ is plural:

• cầu thủ = player / players
• các cầu thủ = the players

English usually marks plural by changing the noun itself, like player → players. Vietnamese nouns usually do not change form, so words like các help show plurality.

Because the sentence is talking about one coach and multiple players.

• huấn luyện viên = coach
• các cầu thủ = players

If you wanted coaches and players, you could say:

• các huấn luyện viên và các cầu thủ

So the lack of các before huấn luyện viên suggests singular here.

Not in the same way English does. Vietnamese does not have direct equivalents that work exactly like English articles.

That means a noun like huấn luyện viên can mean:

• a coach
• the coach
• sometimes just coach in a more general sense

The exact meaning depends on context.

In this sentence, English would naturally translate it as the coach and the players are at the stadium, but Vietnamese does not need separate words for the.

It is a multi-word expression that functions as one noun phrase meaning coach or trainer.

Vietnamese often writes syllables separately, even when they belong to one fixed vocabulary item. So:

• huấn luyện viên = coach
• cầu thủ = player
• sân vận động = stadium

So even though you see several written words, learners should often treat them as a single vocabulary unit.

Yes, you can, but the meaning becomes a little less explicit.

Compare:

• Huấn luyện viên và các cầu thủ ở sân vận động = the coach and the players are at the stadium
• Huấn luyện viên và cầu thủ ở sân vận động = coach and player(s) are at the stadium, with plurality understood more from context

Vietnamese often leaves number unspecified unless it needs to be clear. Using các makes it clearer that there are multiple players.

Normally, no. Là is not the right word for location here.

Use là mainly when one thing is being identified as another:

• Anh ấy là huấn luyện viên. = He is a coach.

But for location, Vietnamese usually uses ở:

• Anh ấy ở sân vận động. = He is at the stadium.

So:

• Huấn luyện viên và các cầu thủ ở sân vận động. = correct
• Huấn luyện viên và các cầu thủ là sân vận động. = incorrect and nonsensical

Sometimes, yes.

• Huấn luyện viên và các cầu thủ ở sân vận động. = The coach and the players are at the stadium.
• Huấn luyện viên và các cầu thủ đang ở sân vận động. = The coach and the players are at the stadium right now.

Adding đang emphasizes that the situation is happening currently. Without đang, the sentence is still perfectly natural and can already mean that, depending on context.

The structure is:

• Huấn luyện viên và các cầu thủ = subject
• ở sân vận động = location phrase

So the pattern is basically:

• Subject + ở + place

This is actually quite straightforward for English speakers once you get used to the missing to be.

A rough pronunciation guide is:

• Huấn luyện viên ≈ hwan loo-yen vee-en
• và ≈ vah
• các ≈ kak
• cầu thủ ≈ gow thoo
• ở ≈ uh
• sân vận động ≈ sun vun dohng

A few important notes:

• Vietnamese is a tonal language, so the tone marks matter a lot.
• English-style pronunciation approximations are only rough.
• It is best to learn the sentence by listening to native audio and repeating it.

Also, some pronunciations differ between northern and southern Vietnamese, though this sentence will still be understood in both.