Kami membawa dua karung besar untuk mengumpulkan daun kering dan botol plastik.

Both kami and kita can mean we, but they are not interchangeable.

• kami = we, not including the person being spoken to
• kita = we, including the person being spoken to

So Kami membawa dua karung besar... means the speaker’s group brought the sacks, but the listener was not part of that group.

In Indonesian, adjectives usually come after the noun they describe.

So:

• karung besar = big sack
• literally, it looks like sack big from an English perspective

This is a very common pattern:

• rumah besar = big house
• botol plastik = plastic bottle or plastic bottles
• daun kering = dry leaves / dry leaf

In natural English, it means two big sacks. The Indonesian structure is:

• dua = two
• karung = sacks
• besar = big

So the whole phrase is simply two big sacks. There is no awkwardness in Indonesian here; it is a normal noun + adjective pattern.

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

So:

• karung can mean a sack, the sack, or just sack/sacks, depending on context
• daun kering can mean dry leaves, the dry leaves, or some dry leaves

The exact meaning usually comes from the situation rather than from a separate word.

Here, untuk means for or in order to.

So:

• untuk mengumpulkan daun kering dan botol plastik = to collect dry leaves and plastic bottles = for collecting dry leaves and plastic bottles

In this sentence, it explains the purpose of bringing the sacks.

This is a very common thing learners ask about.

• kumpul is the basic root
• berkumpul usually means to gather or to assemble, often intransitive, as in people gathering together
• mengumpulkan means to collect or to gather something

So in this sentence, the subject is collecting objects, namely daun kering dan botol plastik, so mengumpulkan is the correct form.

A useful contrast:

• Kami berkumpul di taman. = We gathered in the park.
• Kami mengumpulkan daun. = We collected leaves.

In mengumpulkan, the root is kumpul. The affixes help form a verb meaning to cause something to be gathered or to collect something.

Very roughly:

• meng- often forms an active verb
• -kan often makes the verb more clearly transitive or gives it a do something to/with something sense

So mengumpulkan is a standard transitive verb meaning to collect.

You do not always need to analyze every affix in detail to understand a sentence, but it is useful to recognize that mengumpulkan is a normal dictionary-style verb form in context.

In Indonesian, nouns are often left unmarked for plural if the meaning is already clear from context.

So:

• daun kering can mean dry leaf or dry leaves
• botol plastik can mean plastic bottle or plastic bottles

Because the sentence talks about bringing two big sacks to collect them, it is very natural to understand these nouns as plural, even without reduplication.

Reduplication like daun-daun can mark plurality, but it is not always necessary.

Most naturally, daun kering means dry leaves or dried leaves, depending on context.

• daun = leaf/leaves
• kering = dry

In a sentence about collecting yard waste or trash, daun kering usually refers to dry leaves that have fallen and dried out.

It does not specifically mean dead leaves, although in real life dry fallen leaves are often dead.

This follows another common Indonesian pattern: the main noun comes first, and the describing noun or material comes after it.

So:

• botol plastik = plastic bottle
• literally, bottle plastic

This is similar to how adjectives come after nouns, although plastik here is functioning more like a material descriptor than a typical adjective.

Other examples:

• meja kayu = wooden table
• gelas kaca = glass cup

Yes. Like many Indonesian nouns, botol plastik does not have to show singular or plural explicitly.

Depending on context, it can mean:

• a plastic bottle
• plastic bottles
• the plastic bottles

In this sentence, because it is about collecting materials in sacks, the natural English translation is plural: plastic bottles.

The sentence as written is natural and clear. Indonesian word order is often fairly flexible, but not every change sounds equally natural.

This version is straightforward:

• Kami membawa dua karung besar untuk mengumpulkan daun kering dan botol plastik.

You could also switch the order of the two collected items:

• ...untuk mengumpulkan botol plastik dan daun kering.

That would still be correct.

However, the basic structure remains:

• subject: Kami
• verb: membawa
• object: dua karung besar
• purpose phrase: untuk mengumpulkan...

So while small adjustments are possible, the original sentence is already a very normal Indonesian sentence.

Membawa commonly means to bring, to carry, or to take along, depending on context.

In English, these meanings are often split among different verbs, but Indonesian membawa covers a wider range.

So Kami membawa dua karung besar can be understood as:

• We brought two big sacks
• We carried two big sacks
• We took two big sacks along

The best English choice depends on the situation, but membawa is the normal Indonesian verb here.