Ngoài lọ ra, cậu còn nặn bình hoa không?

Ngoài X ra is a very common Vietnamese pattern meaning besides X, apart from X, or other than X.

So ngoài lọ ra means something like:

• besides the jar
• apart from jars
• other than the jar

Which English version is best depends on context, because Vietnamese nouns do not automatically show the / a / plural the way English does.

In this sentence, ra is part of the fixed expression ngoài ... ra.

It does not literally mean out here. Instead, the whole pattern works together to mean besides / apart from.

So you should learn this as one chunk:

• ngoài X ra = apart from X

If you remove ra, the sentence may sound less complete or less natural in this structure.

Here, còn means also, in addition, or as well.

So:

• cậu còn nặn bình hoa không?
  = Do you also make/mold flower vases?

In other contexts, còn can also mean still, but in this sentence, because of ngoài lọ ra, the meaning is clearly also / in addition.

Sentence-final không turns the sentence into a yes-no question.

So:

• Cậu còn nặn bình hoa.
  = You also mold flower vases.

• Cậu còn nặn bình hoa không?
  = Do you also mold flower vases?

This is a very common way to ask questions in Vietnamese.

Vietnamese does not always need có ... không to form a yes-no question. Very often, just putting không at the end is enough.

In this sentence, that is completely natural.

Also, if you added có in front of còn, you might change the nuance:

• Cậu có còn nặn bình hoa không?
  usually means Do you still make flower vases?

That is different from the additive meaning in the original sentence, which is more like Do you also make flower vases?

Cậu is an informal personal pronoun. It is commonly used when speaking to:

• a friend
• someone of similar age
• someone you know fairly well

So the sentence sounds casual and conversational.

You could replace cậu with other pronouns depending on the relationship:

• bạn for a more neutral you
• anh, chị, em, etc. depending on age and social relationship

Vietnamese pronouns are very relationship-based, unlike English you.

Nặn means to mold, shape, or form by hand, usually from something soft such as:

• clay
• dough
• mud
• soft craft material

So in this sentence, nặn suggests shaping the object by hand, not just making it in a general sense.

That is why nặn is more specific than làm:

• làm = make/do
• nặn = mold/shape by hand

They are related, but not identical.

• lọ usually means a jar, bottle-like container, or sometimes a small vase
• bình hoa specifically means a flower vase

So the sentence contrasts one kind of object with another:

• lọ = jar/container
• bình hoa = flower vase

Depending on context, lọ might refer to something already mentioned, while bình hoa is a different item the speaker is asking about.

Vietnamese often allows bare nouns without classifiers, especially when talking about things in a general way.

So:

• lọ
• bình hoa

are both fine here.

If you added cái, the nouns might sound a little more concrete or specific:

• Ngoài cái lọ ra...
• cậu còn nặn cái bình hoa không?

But the original version is natural, especially if the speaker is talking about types of things someone makes, rather than counting specific objects.

By itself, lọ does not tell you that clearly.

Vietnamese nouns usually do not mark:

• definiteness: the vs a
• number: singular vs plural

So lọ could mean:

• the jar
• a jar
• jars

And bình hoa could mean:

• the flower vase
• a flower vase
• flower vases

You choose the best English version from context.

It is placed first to set up the topic or comparison frame.

The structure is basically:

• Apart from X, do you also Y?

So:

• Ngoài lọ ra, cậu còn nặn bình hoa không?
  = Apart from jars, do you also mold flower vases?

Putting ngoài lọ ra first makes the contrast very clear right away.

In this sentence, also is the better reading.

That is because ngoài lọ ra already creates an in addition to that meaning.

Compare:

• Cậu còn nặn bình hoa không?
  This could mean Do you still make flower vases? or Do you also make flower vases?, depending on context.

• Ngoài lọ ra, cậu còn nặn bình hoa không?
  This strongly points to also / besides that

So the first phrase helps remove the ambiguity.

Yes. It sounds natural in casual speech.

The overall tone is:

• informal
• conversational
• friendly

It sounds like someone asking a person who shapes clay or handmade objects whether they make more than one kind of item.

If you wanted to make it more neutral or polite, you would mainly change the pronoun, for example:

• Ngoài lọ ra, bạn còn nặn bình hoa không?

The grammar pattern itself is perfectly normal.