zhèlǐ bù cúnzài zhège wèntí.

The sentence is built like this:

• 这里 = here / in this place
• 不 = not
• 存在 = exist
• 这个问题 = this problem / this issue

So the overall pattern is:

• location + negation + existential verb + noun phrase

A very literal gloss is:

• Here does not exist this problem.

That sounds awkward in English, but it matches the Chinese word order pretty well.

Chinese very often puts time or place information near the front of the sentence to set the scene first.

So 这里 tells you the location frame before the main statement is made:

• 这里 → as for here / in this place
• 不存在这个问题 → this problem does not exist

This does not have to be the grammatical subject in the English sense. It is more like a setting or topic.

Because this sentence is stating a general fact or condition, not talking about something that didn’t happen in the past.

• 不 is commonly used for general negation, habitual facts, and present/future statements.
• 没(有) is commonly used for not have or did not.

So:

• 不存在 = does not exist
• 没存在 would sound unnatural here

A related sentence with 有 is also possible:

• 这里没有这个问题 = There isn’t this problem here

That is natural too, but it uses a different verb.

Both can work, but the nuance is different.

• 存在 is more formal, abstract, and analytical.
• 有 is more everyday and conversational.

So:

• 这里不存在这个问题 sounds more formal, objective, or written.
• 这里没有这个问题 sounds more natural in casual speech.

You will often hear 存在 / 不存在 in formal discussion, business, politics, academic writing, or official statements.

That is a very good learner question.

In Mandarin, 存在 is commonly used with abstract nouns such as:

• 问题 = problem
• 差异 = difference
• 矛盾 = contradiction
• 风险 = risk

So expressions like these are very common:

• 存在问题 = problems exist / there are problems
• 不存在这个问题 = this problem does not exist

Even if English uses exist a bit differently, this is normal Mandarin usage. You can think of 这个问题 as the thing whose existence is being discussed.

问题 can mean either:

• question
• problem / issue

But in this sentence, with 存在 / 不存在, it almost always means problem or issue, not a spoken question.

Some common patterns:

• 回答问题 = answer a question
• 提出问题 = raise a question / raise an issue
• 存在问题 = there is a problem / problems exist

So the surrounding verb often tells you which meaning is intended.

In standard Mandarin, the normal pattern is:

• 这 + measure word + noun

Here, the measure word is 个, so:

• 这个问题

That is the standard form.

About the other versions:

• 这问题: sometimes heard in speech or seen in informal style, but it is less neutral and less textbook-standard
• 这一个问题: possible, but it usually adds emphasis, like this one particular problem

So if you are learning the standard pattern, 这个问题 is the safest choice.

个 is a measure word (also called a classifier).

In Mandarin, when you use a demonstrative like 这 or 那 before most nouns, you usually need a measure word:

• 这 + 个 + 问题
• 那 + 个 + 人
• 这 + 本 + 书

For 问题, 个 is the common classifier.

So 这个问题 is not made of 这 plus some random extra syllable. The 个 is doing real grammatical work.

Not always.

这 / 这个 can refer to something that is:

• physically near
• mentally near
• just mentioned in conversation
• the current topic under discussion

So in a sentence like this, 这个问题 often means this issue we are talking about, not necessarily something physically close by.

Yes.

• 这里 and 这儿 both mean here
• 这儿 is usually more colloquial
• 这里 is a bit more neutral and works well in both speech and writing

So these are both possible:

• 这里不存在这个问题。
• 这儿不存在这个问题。

The first one feels a bit more standard and slightly more formal.

It is definitely natural, but it sounds more formal than everyday conversation.

If someone is speaking casually, they might be more likely to say:

• 这里没有这个问题。

If someone is being more formal, analytical, or official, they might say:

• 这里不存在这个问题。

So the sentence is good Mandarin; it just belongs a bit more to formal or careful style.

Yes, a few:

• 这里 is zhèlǐ
• 存在 is cúnzài
• 这个 is commonly pronounced zhège, with 个 often light or neutral in everyday speech
• 不 is bù here, not bú

Why is it bù here?

Because 不 changes to bú only when the next syllable is fourth tone.
Here, the next syllable is 存 (cún), which is second tone, so it stays:

• bù cúnzài

Not:

• bú cúnzài