Cậu từng tráng men lọ chưa?

Cậu means you, but it is informal. It is commonly used:

• between friends
• with someone around your age
• sometimes toward someone younger, depending on relationship

It is not the most neutral choice in every situation.

Compared with bạn:

• bạn = more neutral and widely usable
• cậu = more personal, casual, and relationship-based

So Cậu từng tráng men lọ chưa? sounds like you are asking a friend or someone you are on familiar terms with.

Từng marks past experience. In English, it often corresponds to ever or have done before.

So:

• từng làm = have done before
• từng đi = have been / have gone before
• từng tráng men lọ = have glazed a jar before

In this sentence, từng tells you the question is about whether the person has had that experience at any time in the past.

Yes, chưa often means not yet, but at the end of a sentence it is also a very common way to form a yes/no question.

With từng, the pattern từng ... chưa? means:

• have you ever ... ?
• have you done ... before?

So here, chưa is not just a simple standalone not yet. It is part of the question pattern.

A useful way to remember it:

• từng + verb + chưa? = Have you ever + past participle?

They do different jobs:

• từng marks past experience
• chưa turns the sentence into a yes/no question

So the combination gives the meaning:

• Have you ever done this before?

If you remove chưa, it stops being a question. If you remove từng, the meaning changes.

For example:

• Cậu từng tráng men lọ. = You have glazed a jar before.
• Cậu tráng men lọ chưa? = Have you glazed the jar/jar(s) yet?
• Cậu từng tráng men lọ chưa? = Have you ever glazed a jar before?

This is a very important difference.

Cậu từng tráng men lọ chưa?

• asks about life experience
• means Have you ever glazed a jar before?

Cậu tráng men lọ chưa?

• usually asks whether the action has been completed yet
• means something closer to Have you glazed the jar yet? or Have you done the jar-glazing yet?

So từng shifts the meaning from completion of a task to past experience in general.

It is best to learn tráng men as a set verb phrase meaning:

• to glaze
• to coat with glaze/enamel

Literally, the parts are related to coating and glaze/enamel, but in normal usage the whole phrase functions like a single action: to glaze something.

So in this sentence:

• tráng men lọ = glaze a jar

You do not usually break it up in English word-for-word. Treat it as one vocabulary item.

Because lọ is the object of the verb phrase.

Vietnamese word order here is:

• subject
  • time/experience marker
    • verb phrase
      • object
        • question particle

So:

• Cậu = you
• từng = ever / before
• tráng men = glaze
• lọ = jar
• chưa = question marker here

That is why lọ comes after tráng men.

Not necessarily.

Vietnamese often allows a bare noun as an object, especially when speaking generally. So lọ by itself is perfectly possible.

Compare:

• tráng men lọ = glaze jar(s) / glaze a jar
• tráng men cái lọ = glaze the jar / glaze a specific jar

Adding cái can make the noun feel more concrete or specific, but it is not required here.

Lọ usually means something like:

• jar
• vase
• a container-shaped object, depending on context

The exact English translation depends on what kind of object is being glazed. If the context is pottery or ceramics, jar is a reasonable translation, but in another context it could be something closer to vase or another similar container.

Yes. Đã từng is also natural.

So you can say:

• Cậu từng tráng men lọ chưa?
• Cậu đã từng tráng men lọ chưa?

Both mean roughly Have you ever glazed a jar before?

The version with đã can sound a little more explicitly tied to past experience, but in many everyday situations the difference is small. Learners should recognize both.

Common natural replies include:

• Rồi. = Yes / I have.
• Chưa. = No / Not yet / I haven’t.
• Ừ, tớ từng tráng men lọ rồi. = Yes, I’ve glazed a jar before.
• Chưa, tớ chưa từng tráng men lọ. = No, I’ve never glazed a jar before.

A very useful pair to remember is:

• đã/từng ... rồi for a positive answer
• chưa từng ... for a negative answer about experience

It is casual to semi-casual, mainly because of cậu.

If you want a more neutral version, you might say:

• Bạn từng tráng men lọ chưa?

If you want a more polite or respectful version, you would normally choose a different pronoun depending on who you are speaking to.

Vietnamese pronouns depend heavily on relationship, age, and social setting, so choosing the right pronoun matters a lot.

The tones are:

• cậu — heavy/falling glottal tone
• từng — low falling tone
• tráng — rising tone
• men — level tone
• lọ — heavy/falling glottal tone
• chưa — level tone

A few pronunciation points learners often notice:

• tr in tráng is different from English tr
• ư in từng and chưa is not the same as English oo or uh
• ng at the end of từng is a final nasal sound
• lọ and cậu both carry a heavy tone, so they sound more abruptly cut off than level-tone words

If you say the tones clearly, the sentence will sound much more natural.