Di supermarket, saya mengambil troli karena mau membeli banyak barang.

Di supermarket means in the supermarket or at the supermarket.

• di = in / at / on, for location
• supermarket = supermarket

Indonesian often puts a place expression at the beginning of the sentence to set the scene. So Di supermarket, saya mengambil troli... is like saying At the supermarket, I took a cart...

You could also say:

• Saya mengambil troli di supermarket...

That is also correct. The meaning stays basically the same, but the focus changes slightly.

This is a very common question.

• di shows location: in / at
  • di supermarket = at the supermarket
• ke shows movement toward a place: to
  • ke supermarket = to the supermarket

So in this sentence, di supermarket is correct because the speaker is already there.

Compare:

• Saya pergi ke supermarket. = I go to the supermarket.
• Saya belanja di supermarket. = I shop at the supermarket.

Mengambil is the active verb form of ambil.

• ambil = take (base/root form)
• mengambil = to take / take, with the meN- active prefix

In normal full sentences, Indonesian often uses the meN- form for active verbs:

• saya mengambil troli = I take / took a cart

Using just ambil is possible in some situations, but it sounds less neutral or less complete. For example:

• commands: Ambil troli! = Take a cart!
• casual speech: sometimes the prefix is dropped

For standard learner Indonesian, mengambil is the expected form here.

This happens because of the meN- prefix.

The base verb is ambil. When meN- is added, the form becomes mengambil.

This is just how the prefix combines with that root. Indonesian learners usually need to memorize these patterns over time.

A few examples:

• ambil → mengambil
• beli → membeli
• lihat → melihat
• pakai → memakai

So in your sentence:

• mengambil = took / was taking / take
• membeli = to buy / buy

It can mean all of those, depending on context.

In this sentence, mengambil troli could be understood as:

• take a cart
• get a cart
• pick up a cart

All are natural translations in English.

Indonesian verbs are often broader than a single English verb, so context matters a lot.

Troli is a loanword, ultimately from English trolley.

Indonesian uses many loanwords, especially for modern objects. Troli is the normal everyday word for a shopping cart/trolley/cart in a supermarket context.

Depending on region and translation style, English might say:

• cart
• shopping cart
• trolley

But in Indonesian, troli is a very common choice.

Karena means because.

It introduces the reason:

• saya mengambil troli = I took a cart
• karena mau membeli banyak barang = because I wanted to buy many items

So the structure is:

main action + karena + reason

Examples:

• Saya pulang karena lelah. = I went home because I was tired.
• Dia belajar karena besok ujian. = He/She studied because tomorrow is the exam.

Mau means want to or sometimes be going to, depending on context.

So:

• mau membeli = want to buy / was going to buy

In this sentence, it explains intention:

• I took a cart because I wanted to buy a lot of things

If you said just karena membeli banyak barang, that would sound more like because [I was] buying many items, which is less natural here.

So mau membeli clearly shows purpose or intention.

They are similar, but not identical in tone.

• mau = want to; common, everyday, conversational
• ingin = want / wish; often a bit more formal or more explicitly about desire

In this sentence, mau membeli sounds very natural in daily speech.

You could say:

• ...karena ingin membeli banyak barang.

That is also correct, and maybe a little more formal or polished.

Because Indonesian grammar works differently.

In English:

• want to buy

In Indonesian:

• mau membeli

There is no separate word corresponding exactly to English to here. After verbs like mau, ingin, bisa, akan, Indonesian usually just puts another verb directly after it.

Examples:

• Saya mau makan. = I want to eat.
• Dia ingin pergi. = He/She wants to go.
• Kami bisa datang. = We can come.

Indonesian does not mark plurals the way English does.

• barang = item / thing / goods
• banyak barang = many items / a lot of things

The word banyak already shows that there is more than one, so no extra plural ending is needed.

This is very normal in Indonesian:

• banyak buku = many books
• tiga mobil = three cars
• beberapa orang = several people

Sometimes Indonesian uses reduplication for plural ideas, but not when a quantity word like banyak is already present.

Barang is a broad word meaning thing, item, or goods.

In a supermarket sentence, barang usually means items/products/things to buy.

So banyak barang can mean:

• many items
• a lot of things
• a lot of groceries/products

It is a very flexible and common word.

Indonesian usually does not use articles like English a, an, and the.

So:

• mengambil troli literally looks like take cart
• but natural English is take a cart or take the cart, depending on context

Indonesian often leaves that unstated, and the listener understands it from context.

If you really want to emphasize one, you can say:

• sebuah troli = a cart / one cart

But in this sentence, troli by itself is the most natural choice.

Sometimes yes, but including it is very normal and clear.

• Saya mengambil troli... = clear, complete, neutral
• Mengambil troli karena mau membeli banyak barang. = possible in very casual or context-heavy speech, but it sounds incomplete on its own as a full standard sentence

Indonesian often omits subjects when they are obvious from context, especially in conversation, but learners should usually keep saya until they are comfortable with when omission sounds natural.

By itself, Indonesian verbs do not always mark tense clearly.

So saya mengambil troli could potentially be understood as:

• I took a cart
• I take a cart
• I was taking a cart

The time usually comes from context.

In this specific sentence, English often translates it naturally as I took a cart because I wanted to buy a lot of items, but another context could make a different tense sound better.

If Indonesian wants to make time clearer, it can add time words:

• tadi = earlier / a while ago
• sekarang = now
• besok = tomorrow

Example:

• Tadi saya mengambil troli... = Earlier, I took a cart...
• Sekarang saya mengambil troli... = Now I’m taking a cart...

The basic order here is very natural, but some parts can move.

Original:

• Di supermarket, saya mengambil troli karena mau membeli banyak barang.

Also possible:

• Saya mengambil troli di supermarket karena mau membeli banyak barang.

Both are correct.

Indonesian word order is often fairly flexible, especially for time and place expressions. But the core verb phrase usually stays clear:

• saya = subject
• mengambil = verb
• troli = object

And karena... introduces the reason.

Not in the same way.

• karena = because
• untuk = for / in order to

Your sentence gives a reason:

• I took a cart because I wanted to buy a lot of things

If you use untuk, the meaning shifts more toward purpose:

• Saya mengambil troli untuk membeli banyak barang. = I took a cart to buy a lot of things / in order to buy a lot of things

That is also a good sentence, but it is slightly different from the original.
Karena mau membeli... emphasizes the reason in the speaker’s mind.
Untuk membeli... emphasizes purpose more directly.