Nếu bạn chưa ăn món mì ở quán đó bao giờ, bạn nên thử.

Nếu means if. It introduces the condition for the main clause.

So the sentence structure is:

• Nếu ... = If ...
• ..., bạn nên thử. = ..., you should try it.

Vietnamese does not change verb forms the way English does, so the conditional meaning comes from the word nếu and the context, not from verb tense changes.

The pattern chưa ... bao giờ means have never ... before or have not ever ... yet.

In this sentence:

• chưa ăn ... bao giờ = have never eaten ... before

The two parts work together:

• chưa = not yet
• bao giờ = ever / at any time, in this kind of negative structure

So Nếu bạn chưa ăn món mì ở quán đó bao giờ means If you’ve never eaten the noodle dish at that place before...

Yes. Bao giờ often means when in questions, for example:

• Bao giờ bạn đi? = When are you leaving?

But in negative or experience-related sentences, especially with chưa, it often means ever:

• Bạn đã ăn món đó bao giờ chưa? = Have you ever eaten that dish?
• Tôi chưa ăn món đó bao giờ. = I’ve never eaten that dish before.

So the meaning of bao giờ depends on the sentence pattern.

Món is a word used for a dish or food item. So:

• mì = noodles / noodle dish
• món mì = the noodle dish

Using món makes it sound more like a specific menu item or a particular prepared dish, not just noodles in general.

So:

• ăn mì = eat noodles
• ăn món mì = eat the noodle dish

Both can be possible, but món mì is a little more specific.

Ở quán đó means at that shop/restaurant/eatery.

It tells you where the eating happens, and in natural English it often gets interpreted as modifying the dish too:

• the noodle dish at that place
• or eat the noodle dish at that place

Vietnamese often allows this kind of phrase to sit after the noun phrase without making the relationship as explicit as English sometimes does. Context makes it clear.

Quán usually refers to a casual eating or drinking place, such as:

• a small restaurant
• a café
• a food stall
• a noodle shop

It is often less formal than nhà hàng, which is more like restaurant in the fuller, more formal sense.

So quán đó is something like:

• that place
• that eatery
• that shop
• sometimes that restaurant, depending on context

Vietnamese commonly repeats the subject in each clause:

• Nếu bạn ..., bạn nên ...

This is natural and clear. English also does this:

• If you ..., you should ...

You may sometimes hear omissions in very casual speech, but in a full standard sentence, repeating bạn is normal.

Nên means should / ought to.
Thử means try.

So bạn nên thử means:

• you should try it
• you ought to give it a try

It expresses a recommendation, not a command.

The object is understood from the earlier part of the sentence. The speaker already mentioned món mì, so Vietnamese can leave it out to avoid repetition.

So:

• bạn nên thử = you should try it
• full version: bạn nên thử món mì đó = you should try that noodle dish

Both are fine. The shorter version sounds natural because the meaning is already clear.

They have slightly different roles:

• ăn = to eat
• thử = to try

In the first clause, the speaker is talking about your past experience:

• If you have never eaten it before...

In the second clause, the speaker is making a recommendation:

• ...you should try it.

That contrast is very natural. English does the same thing.

Yes. A very common alternative is chưa từng, which also means have never.

For example:

• Nếu bạn chưa từng ăn món mì ở quán đó, bạn nên thử.

This is very close in meaning to the original. Compared with chưa ... bao giờ, chưa từng is a bit more compact. Both are correct and natural.

Vietnamese does not mark tense on the verb the way English does. Instead, time is shown through words like chưa, context, and logic.

Here:

• chưa ăn ... bao giờ shows lack of past experience up to now
• nên thử gives a present recommendation about a future action

So the sentence combines:

• a past-experience idea: you’ve never eaten it before
• a present suggestion about the future: you should try it

That is very typical in Vietnamese.