Tiub dalam itu rosak.

• tiub = tube
• dalam = inner / inside
• itu = that
• rosak = damaged / broken / faulty

So tiub dalam means inner tube, and the whole sentence means That inner tube is damaged or The inner tube is broken.

In Malay, modifiers often come after the noun. So where English says inner tube, Malay says tube inner, which becomes tiub dalam.

This is very normal in Malay word order. English and Malay often build noun phrases differently.

Not in this sentence.

Dalam can mean in / inside in other contexts, but here it is part of the noun phrase tiub dalam, which means inner tube.

So in this sentence, dalam is not acting like the preposition in. It is helping describe what kind of tube it is.

Itu is a demonstrative, usually meaning that. It comes after the noun phrase in Malay.

So:

• tiub dalam itu = that inner tube

Depending on context, it can also feel like the in English, since English often uses the where Malay uses itu for something specific and identifiable.

Malay often leaves out the verb to be in simple sentences like this.

So instead of saying something like The inner tube is damaged with a separate word for is, Malay simply says:

Tiub dalam itu rosak
literally: inner tube that damaged

This is completely normal Malay grammar.

Rosak is a broad word meaning damaged, broken, spoiled, or not working properly.

For an inner tube, it could mean:

• damaged
• punctured
• unusable
• faulty

The exact English translation depends on context. In this sentence, broken or damaged are both good translations.

Yes, depending on what you mean.

• rosak = damaged / broken in a general sense
• bocor = leaking / punctured

So if the inner tube specifically has a hole and is leaking air, Tiub dalam itu bocor may be even more precise.

But rosak is still natural if you just mean the inner tube is not okay anymore.

Tiub is a loanword from English tube.

A useful pronunciation guide is:

• tiub ≈ tee-oob
• rosak ≈ roh-sak

Malay pronunciation is usually quite regular, so once you know the spelling, pronunciation is often straightforward.

Not if you want the same natural meaning.

The normal structure is:

Tiub dalam itu rosak
= That inner tube is damaged

Here:

• tiub dalam stays together as the noun phrase inner tube
• itu comes after the noun phrase
• rosak comes after that as the description

Changing the order can sound unnatural or change the meaning.

You would say:

Tiub dalam ini rosak.

Here:

• ini = this
• itu = that

So:

• tiub dalam ini = this inner tube
• tiub dalam itu = that inner tube

Yes. Tiub dalam is the normal term for an inner tube, especially the inflatable tube inside a tire.

So this sentence would make sense in situations involving:

• bicycles
• motorcycles
• some vehicle tires
• repair shops

If you were talking about the whole tire rather than the inner tube, you would usually use tayar for tire.

It is a borrowed word, ultimately from English tube.

Malay uses many loanwords, and tiub is a normal, standard word. Learners should not worry if some Malay words look or sound familiar from English—that is very common.