Saya mau coba jus pepaya dingin.

Saya means I. It is the neutral, polite, and very common way to say I in Indonesian.

Yes, you can often replace it with aku, but the tone changes:

• saya = polite, neutral, suitable in most situations
• aku = casual, personal, used with friends, family, or in informal speech

So:

• Saya mau coba jus pepaya dingin. = polite/neutral
• Aku mau coba jus pepaya dingin. = more casual

Here, mau means something like want to or would like to.

So saya mau coba means:

• I want to try
• or more naturally in many contexts, I’d like to try

Mau often expresses desire or intention. Depending on context, it can also feel a bit like going to, but in this sentence the main idea is wanting.

Indonesian does not use a separate infinitive marker like English to.

So where English says:

• I want to try

Indonesian simply says:

• Saya mau coba

There is no extra word needed between mau and coba.

Both are possible, but coba is very common in everyday speech, especially after words like mau.

• Saya mau coba jus pepaya dingin. = natural, conversational
• Saya mau mencoba jus pepaya dingin. = also correct, a bit more formal or careful

This happens a lot in Indonesian: the base verb is often used in casual speech where a prefixed form is also grammatically possible.

Not always. Coba can have a few related uses.

In this sentence, it means try as a verb:

• Saya mau coba jus pepaya dingin. = I want to try cold papaya juice.

But coba can also be used like:

• Coba lihat. = Try looking / Take a look.
• Coba! = Try it!
• sometimes even as a softener in suggestions

So the exact nuance depends on context, but here it is simply try.

In Indonesian, the main noun usually comes first, and the word that describes or specifies it comes after.

So:

• jus pepaya = papaya juice
  • jus = juice
  • pepaya = papaya

This is the normal Indonesian order. English often puts the modifier first, but Indonesian usually puts it after the noun.

Other examples:

• air dingin = cold water
• roti bakar = toasted bread / toast
• es teh = iced tea

In normal interpretation, dingin describes the drink as a whole: cold papaya juice.

So:

• jus pepaya dingin = cold papaya juice

Because dingin comes after the noun phrase, it usually applies to the whole thing before it.

Technically, if you look at the words alone, you might briefly wonder whether it means juice made from cold papaya, but in real-life context people will understand it as the juice is cold.

They are similar, but not exactly identical.

• jus pepaya dingin = cold papaya juice
• jus pepaya es = iced papaya juice / papaya juice with ice

Dingin focuses on the temperature being cold.
Es suggests ice is involved.

In many restaurant situations, both could make sense, but the nuance is a little different.

Yes, it is understandable and natural enough, especially if you mean I want to try the cold papaya juice.

However, depending on the situation, Indonesians might also say:

• Saya mau jus pepaya dingin. = I want cold papaya juice.
• Saya mau pesan jus pepaya dingin. = I want to order cold papaya juice.
• Saya mau coba jus pepaya dingin. = I want to try cold papaya juice.

Using coba adds the idea that this is something you want to test or taste, perhaps for the first time.

Yes, very often in conversation, Indonesian can drop the subject if it is already clear from context.

So you might hear:

• Mau coba jus pepaya dingin.

This can mean (I) want to try cold papaya juice, especially when speaking to a seller or server.

Still, including saya makes the sentence complete and clear, and it sounds more neutral or polite.

The structure is:

• Saya = subject
• mau coba = verb phrase
• jus pepaya dingin = object / thing being talked about

So the pattern is basically:

• Subject + want + try + noun phrase

Word by word:

• Saya = I
• mau = want
• coba = try
• jus = juice
• pepaya = papaya
• dingin = cold

Yes. That is correct and a bit more formal.

Compare:

• Saya mau coba jus pepaya dingin. = natural, everyday, conversational
• Saya ingin mencoba jus pepaya dingin. = more formal, more textbook-like, more careful

Both mean roughly the same thing. A learner will often hear the shorter, less formal version in real conversation.