Chúng tôi cùng làm việc nhà.

Chúng tôi means we, but it is exclusive: it does not include the person being spoken to.

So if I say Chúng tôi cùng làm việc nhà, I mean we do the housework together, but you are probably not part of that group.

By contrast, chúng ta is inclusive: it includes the listener too.

• chúng tôi = we, but not you
• chúng ta = we, including you

This is a very common distinction in Vietnamese and often surprises English speakers, because English we can mean either one depending on context.

Here, cùng means together.

In Chúng tôi cùng làm việc nhà, it shows that the people in the group are doing the housework jointly, not separately.

A very natural way to understand the structure is:

• Chúng tôi = we
• cùng = together
• làm việc nhà = do housework / do chores

So the sentence has the feeling of We do the housework together.

In this sentence, cùng functions like an adverb, so it comes before the verb phrase it modifies.

Structure:

• Chúng tôi = subject
• cùng = adverb
• làm việc nhà = verb phrase

So the order is very natural: Subject + cùng + verb phrase

You may also hear cùng nhau, which is a slightly fuller way to say together:

• Chúng tôi cùng nhau làm việc nhà.

That also sounds natural.

Here it means do housework or do household chores.

This is important because làm việc by itself usually means to work or to do work, especially in the sense of a job or professional activity.

But việc nhà means housework / household tasks / chores.

So:

• làm việc = work
• làm việc nhà = do housework

English speakers sometimes misread việc nhà literally as home work, but it does not mean school homework. For school homework, Vietnamese usually says bài tập về nhà.

Việc nhà literally means house-related tasks.

It covers things like:

• cleaning
• washing dishes
• doing laundry
• cooking
• tidying up

So it is very close to English housework or chores.

You can think of:

• việc = task, work, matter
• nhà = house, home

Together, việc nhà means the tasks of the home.

Vietnamese often does not mark tense directly the way English does. A basic sentence can be understood from context.

So Chúng tôi cùng làm việc nhà could mean different things depending on the situation:

• We do housework together
• We are doing housework together
• We did housework together

If you want to make the time clearer, Vietnamese can add time words or aspect markers:

• Chúng tôi đang cùng làm việc nhà. = We are doing housework together.
• Chúng tôi sẽ cùng làm việc nhà. = We will do housework together.
• Hôm qua, chúng tôi cùng làm việc nhà. = Yesterday, we did housework together.

This is a core feature of Vietnamese grammar.

Yes, it is natural and grammatical.

That said, Vietnamese also has other very natural versions, depending on style and emphasis:

• Chúng tôi cùng làm việc nhà.
• Chúng tôi cùng nhau làm việc nhà.
• Chúng tôi làm việc nhà cùng nhau.

All of these can be used. The version with cùng nhau feels a bit more explicit about together.

The original sentence is short, clear, and perfectly acceptable.

Yes. Vietnamese pronouns depend a lot on social context, age, and relationship.

Possible alternatives include:

• chúng ta = we, including the listener
• chúng em = we, when the speakers are younger/lower-status than the listener
• tụi tôi / bọn tôi = more informal ways to say we (usually excluding the listener)
• chúng mình = often friendly, warm, sometimes inclusive depending on context

So the choice of pronoun is not just grammatical; it also reflects social relationships.

Yes. Cùng is a flexible word.

In some contexts, it can mean with or together with, especially before a noun:

• Tôi đi cùng bạn. = I go with you.

In your sentence, though, cùng is best understood as together, modifying the action làm việc nhà.

So learners should not try to give it only one English translation in every situation. Its exact meaning depends on how it is used in the sentence.

A rough pronunciation guide is:

Chúng tôi cùng làm việc nhà
≈ choong toy koong lahm vee-uk nya

A few notes:

• chúng has the ng sound at the end.
• tôi sounds roughly like toy, but not exactly like the English word.
• cùng has a different vowel from English coo; also remember the tone.
• việc is tricky because it is a short syllable with a final c sound.
• nhà begins with nh, a very common Vietnamese sound, somewhat like the ny in canyon.

The tones matter a lot, so listening to native audio is especially helpful here.

Absolutely. This sentence works well as a base pattern.

You can add time, place, or manner information:

• Chúng tôi cùng làm việc nhà vào cuối tuần. = We do housework together on weekends.
• Chúng tôi đang cùng làm việc nhà. = We are doing housework together.
• Ở nhà, chúng tôi cùng làm việc nhà. = At home, we do housework together.
• Mỗi ngày, chúng tôi cùng làm việc nhà. = Every day, we do housework together.

This makes it a useful model sentence for building many similar sentences.