Pemilik rumah tentu memulangkan deposit.

Literally, pemilik rumah means owner of a house/house owner.

Malay often puts two nouns together like this:

• pemilik = owner
• rumah = house

The second noun explains or narrows the first one, so pemilik rumah means the owner of the house. In context, this can also be understood as the landlord.

Malay does not normally use articles like English a/an/the.

So:

• pemilik rumah can mean a house owner, the house owner, or the landlord
• deposit can mean a deposit or the deposit

Context tells you which one is meant. If a speaker wants to make something more clearly definite, they may add words like itu, for example deposit itu = that/the deposit.

Tentu means certainly, definitely, or surely.

In this sentence, it shows confidence or certainty. It suggests that the speaker believes the action will happen. Depending on context, English might translate it as:

• certainly returns
• will definitely return
• surely returns

In natural English, a future translation is often more likely here.

In Malay, adverbs like tentu often come after the subject and before the main verb.

So the pattern here is:

• Pemilik rumah = subject
• tentu = adverb
• memulangkan deposit = verb + object

This word order is very normal in Malay.

Memulangkan means to return something or to give something back.

It is a transitive verb, which means it needs an object:

• memulangkan deposit = return the deposit

This is different from just talking about someone themselves going back. Here, the verb is about causing an item to go back to its owner.

It is built from the root pulang, which is related to returning/going back/home.

The verb memulangkan uses:

• the prefix meN-
• the suffix -kan

This creates a verb meaning something like return something or cause something to be returned.

For learners, the most useful thing is simply to remember:

• memulangkan = return (something)

Because memulangkan is a direct transitive verb. It takes its object directly, just like English return in return the deposit.

So:

• memulangkan deposit = return the deposit

You do not need a preposition like to before deposit.

Malay verbs usually do not change form for tense the way English verbs do.

So memulangkan itself does not tell you whether it is:

• present
• future
• habitual

The time usually comes from context or extra words. In this sentence, because of tentu, English often makes it sound natural as a future statement:

• The landlord will definitely return the deposit.

But the Malay sentence itself does not contain a special future verb form.

Yes. Literally it means house owner, but in the context of a rental deposit, it would very naturally be understood as the landlord.

So the exact English choice depends on context:

• general context: house owner/homeowner
• rental context: landlord

No, akan is not required.

Malay often leaves time unstated if the context is clear.
So:

• Pemilik rumah tentu memulangkan deposit.
• Pemilik rumah tentu akan memulangkan deposit.

Both are possible.

The version with akan makes the future sense more explicit, something like will definitely return. Without akan, the sentence can still naturally be understood that way from context.

Yes, it is an active sentence:

• Pemilik rumah = the doer of the action
• memulangkan = the action
• deposit = the thing affected

A passive version would be:

• Deposit itu tentu dipulangkan oleh pemilik rumah.

That means The deposit will certainly be returned by the landlord/house owner.

Notice:

• memulangkan → dipulangkan in the passive
• oleh means by

It depends on context.

• deposit by itself is perfectly possible in Malay.
• deposit itu makes it more explicitly definite: that deposit / the deposit.

So:

• Pemilik rumah tentu memulangkan deposit. = natural, general
• Pemilik rumah tentu memulangkan deposit itu. = more specifically that/the deposit

If both speaker and listener already know which deposit is being discussed, either can work, but deposit itu sounds a bit more specific.