Jeg kan ikke klare så meget støj i metroen.

Because in a normal Danish main clause, the finite verb usually comes early, and ikke typically comes after that verb.

So:

• Jeg kan ikke klare ...
• literally: I can not handle ...

This is the normal pattern in Danish main clauses:

• Jeg kommer ikke i morgen. = I am not coming tomorrow.
• Hun vil ikke med. = She does not want to come along.

So even though English says cannot / can’t, Danish splits the idea into kan + ikke.

Here, klare means handle, cope with, or put up with.

In this sentence, jeg kan ikke klare ... means:

• I can’t handle ...
• I can’t cope with ...
• I can’t stand ... (depending on tone)

Klare is a very common Danish verb, but its meaning depends on context. It can also mean:

• manage: Kan du klare det? = Can you manage it?
• succeed / get through: Han klarede eksamen. = He passed/got through the exam.

Here, it is about being unable to tolerate something.

Because støj (noise) is treated as an uncountable noun, just like English noise.

In Danish:

• meget is used with uncountable nouns
• mange is used with countable plural nouns

So:

• så meget støj = so much noise
• så mange mennesker = so many people

A useful comparison:

• meget vand = much water
• meget arbejde = much work
• mange biler = many cars

Since støj is not counted as separate items, meget is the correct choice.

Så adds emphasis and gives the sense of so much rather than just much.

Compare:

• meget støj = much/a lot of noise
• så meget støj = so much noise

So så makes it feel stronger and more emotional. It suggests the amount of noise is more than the speaker can tolerate.

The ending -en is the definite article attached to the noun.

So:

• en metro = a metro
• metroen = the metro

Danish usually puts the at the end of the noun instead of using a separate word like English does.

So:

• i metroen = in the metro / on the metro

In this sentence, it refers to the metro as the place where the noise is happening.

This is just one of those preposition differences between Danish and English.

Danish often uses i where English might use in or on, especially for being inside a means of transport.

So:

• i metroen = in/on the metro
• i bussen = on the bus
• i toget = on the train

If you want to say by metro as a means of transport, Danish often uses:

• med metroen = by metro / on the metro

So:

• Jeg er i metroen. = I am in/on the metro.
• Jeg tager med metroen. = I go by metro.

Grammatically, støj is usually treated as an uncountable mass noun, not as a normal singular countable noun.

That means it works like:

• noise
• traffic
• furniture (in English, also uncountable)

So in this sentence, støj does not mean a noise. It means noise in general.

You can say:

• Der er meget støj her. = There is a lot of noise here.

But you would not normally use it the same way as a countable noun like en bil or en stol.

Yes, you could, but the nuance changes a little.

• Jeg kan ikke klare så meget støj ... = I can’t handle that much noise.
• Jeg tåler ikke så meget støj ... = I can’t tolerate that much noise.

Tåle sounds a bit more like tolerate/endure, while klare is very common in everyday speech and can sound a bit more natural in casual conversation.

Another possible verb is:

• Jeg orker ikke så meget støj ...

But orke is closer to I don’t have the energy for or I can’t deal with emotionally, so it is not exactly the same.

Yes. Kan ikke klare is quite flexible.

It can mean:

• physically unable to stand something
• mentally or emotionally unable to cope with something
• generally unable to manage something

In your sentence, it most naturally means the speaker finds the noise overwhelming or intolerable.

For example:

• Jeg kan ikke klare varmen. = I can’t handle the heat.
• Han kan ikke klare stress. = He can’t handle stress.
• Vi kan ikke klare flere problemer lige nu. = We can’t handle more problems right now.

Støj can be tricky for English speakers.

A rough guide is:

• st as in English stay
• øj is a vowel sound that does not exist exactly in English

It sounds roughly like stoy, but that is only approximate.

Important points:

• the ø sound is a rounded front vowel
• the word is short, one syllable
• the j helps create the glide at the end

So støj is approximately:

• stoy (rough English approximation)

But if you want to sound more Danish, focus on learning the ø sound rather than relying too much on English spelling.

Yes. You can say:

• Jeg kan ikke klare meget støj i metroen.

That is grammatical, but it is slightly different in feel.

• så meget støj = so much noise
• meget støj = much / a lot of noise

The version with så sounds more natural if you want to stress that the amount is excessive. Without så, the sentence is a bit more neutral or general.

Yes, it sounds natural and idiomatic.

It is the kind of sentence a Danish speaker could easily say in everyday life if they are complaining about noise sensitivity, stress, or discomfort.

Depending on style, a speaker might also say:

• Der er for meget støj i metroen til mig. = There is too much noise in the metro for me.
• Jeg kan ikke holde ud, at der er så meget støj i metroen. = I can’t stand that there is so much noise in the metro.

But your sentence is completely normal and natural.