Apakah yang ada dalam perjanjian sewa?

Here, apakah means what.

It is closely related to apa, which is the more common everyday word for what. In this sentence:

• Apakah yang ada dalam perjanjian sewa?
• Apa yang ada dalam perjanjian sewa?

both mean essentially the same thing.

The difference is mainly tone:

• apakah = more formal, more written, more careful
• apa = more common in normal conversation

One extra note: apakah can also introduce formal yes/no questions in other sentences, but in this sentence it is functioning as what.

Yang links apakah/apa to the rest of the clause.

In Apakah yang ada dalam perjanjian sewa?, the phrase yang ada dalam perjanjian sewa means something like:

• that is in the lease agreement
• or more literally, that exists in the lease agreement

So the whole structure is roughly:

• Apakah = what
• yang ada dalam perjanjian sewa = that is in the lease agreement

This is a very common Malay pattern:

• Apa yang kamu mahu? = What do you want?
• Apa yang berlaku? = What happened?
• Apa yang ada di sana? = What is there over there?

For learners, the safest habit is: after apa when you mean what ...? as the thing being identified, yang is often needed.

Here, ada means to be there, to exist, or to be present.

So yang ada dalam perjanjian sewa means:

• that is in the lease agreement
• that appears in the lease agreement
• that is included in the lease agreement

It does not mean have in the English sense here.

Malay ada often has an existence/presence meaning:

• Ada orang di luar. = There is someone outside.
• Apa yang ada dalam kotak itu? = What is in that box?

So in your sentence, the idea is about the contents of the agreement.

Malay usually does not need a separate verb like English to be in the same way English does.

English says:

• What is in the lease agreement?

Malay says:

• Apakah yang ada dalam perjanjian sewa?

The sentence already works without a separate copula like is. Instead, ada covers the idea of something being present or existing.

So Malay is not translating English word-for-word. It uses its own natural structure.

A useful breakdown is:

• Apakah = what
• yang = that/which
• ada = exists / is there / is present
• dalam = in
• perjanjian sewa = lease agreement / rental agreement

A fairly literal rendering would be:

• What is it that is in the lease agreement?

That sounds a bit unnatural in English, but it helps show how the Malay sentence is built.

Dalam means in or inside.

In this sentence, dalam is completely natural:

• dalam perjanjian sewa = in the lease agreement

You may also hear di dalam, which can sound a little more explicitly locational:

• di dalam kotak = in the box
• di dalam rumah = in the house

But with documents, contents, or abstract things, plain dalam is very common and often preferred:

• dalam buku
• dalam surat
• dalam perjanjian

So dalam perjanjian sewa is exactly what you would expect.

In Malay noun phrases, the main noun usually comes first, and the describing word comes after it.

So:

• perjanjian = agreement
• sewa = rent / rental / lease

Together:

• perjanjian sewa = rental agreement / lease agreement

The head noun is perjanjian, and sewa tells you what kind of agreement it is.

This is a very common Malay pattern:

• kereta sewa = rental car
• rumah sewa = rental house
• kad kredit = credit card

So English often goes modifier + noun, but Malay often goes noun + modifier.

Sewa is a broad word. Depending on context, it can mean:

• rent
• rental
• hire
• lease

So perjanjian sewa can be translated as:

• rental agreement
• lease agreement
• sometimes tenancy agreement, depending on context

Malay often uses one word where English uses several more specific ones.

Yes, it is natural, but it sounds somewhat formal because of apakah.

In everyday conversation, many speakers would more likely say:

• Apa yang ada dalam perjanjian sewa?

That is less formal and very common.

More formal or written alternatives might include:

• Apakah yang terkandung dalam perjanjian sewa?
• Apakah kandungan perjanjian sewa itu?

So your sentence is correct and natural, especially in careful speech or writing.

In standard Malay, that sounds odd. It is much better to keep yang:

• Apakah yang ada dalam perjanjian sewa?
• Apa yang ada dalam perjanjian sewa?

Without yang, the sentence feels incomplete or ungrammatical to many speakers in this meaning.

In very casual speech, people sometimes shorten structures, but for a learner, the best choice is to keep yang in this pattern.

You might hear Ada apa ...? in conversation, especially when asking what is inside something:

• Ada apa dalam beg itu? = What is in that bag?

So Ada apa dalam perjanjian sewa? may be understandable, but with a document it is less neutral than Apa yang ada dalam perjanjian sewa?

For learners, Apa yang ada ...? is the safer and more standard pattern. It works well in many situations and sounds more broadly natural.