Kami membungkus kotak pindah rumah dengan kertas pembungkus.

Kami means we, but it does not include the listener.

• kami = we excluding you
• kita = we including you

So if the speaker is talking about their group wrapping the boxes, but the person being spoken to was not part of it, kami is correct.

Bungkus is the root word, meaning wrap, pack, or cover.

In a normal active sentence like this, Malay usually adds the meN- prefix to form the verb:

• bungkus → membungkus

This makes it sound like a standard transitive verb: to wrap something.

With words beginning with b, meN- becomes mem-, which is why you get membungkus, not mebungkus.

The sentence follows the common Malay pattern:

• Kami = subject
• membungkus = verb
• kotak pindah rumah = object
• dengan kertas pembungkus = prepositional phrase showing the instrument

So the structure is basically Subject + Verb + Object + with-phrase.

Literally, it is something like box for moving house or moving-house box.

Malay often puts words together in a compact way like this. Here:

• kotak = box
• pindah rumah = move house / moving house

Together, kotak pindah rumah refers to a box used when moving house.

Yes. Pindah rumah is a normal Malay expression meaning to move house.

English speakers sometimes expect something more like move to another house, but in Malay, pindah rumah is a very common way to say it. So in kotak pindah rumah, the phrase pindah rumah works like a label describing what kind of box it is.

Malay often leaves out words like for when making compact noun phrases.

So:

• kotak pindah rumah = moving box / box for moving house

If you want to be more explicit, you could say:

• kotak untuk pindah rumah

Both are understandable, but the shorter version is very natural in this kind of phrase.

It can be either singular or plural, depending on context.

Malay nouns often do not change form for plural the way English nouns do. So:

• kotak can mean box or boxes

If the speaker wants to make plurality very clear, they can say:

• kotak-kotak = boxes

But very often Malay leaves this to context.

Malay does not have obligatory articles like English.

So a noun such as kotak can mean:

• a box
• the box
• boxes

The exact meaning depends on context.

If needed, Malay can add other words:

• sebuah kotak = a box / one box
• kotak itu = that box / the box

Here, dengan means with or by using.

So dengan kertas pembungkus tells you the material or tool used to do the wrapping:

• with wrapping paper
• using wrapping paper

Kertas pembungkus means wrapping paper.

Breakdown:

• kertas = paper
• pembungkus = something for wrapping / wrapping material / wrapper

Pembungkus comes from the root bungkus with the prefix peN-, which often forms a noun related to the action or the thing/person involved in it.

Because the root starts with b, peN- becomes pem-:

• bungkus → pembungkus

Not by itself. Malay verbs do not usually change form for tense.

So Kami membungkus kotak pindah rumah dengan kertas pembungkus could mean:

• We wrapped...
• We are wrapping...
• We wrap...

The time is usually understood from context, or shown with time words such as:

• sedang = currently
• sudah / telah = already
• akan = will

Yes, it is natural and easy to understand.

A speaker might also say slightly different versions depending on context, for example:

• Kami membungkus kotak-kotak pindah rumah dengan kertas pembungkus if they want to make the plural very clear
• Kami membungkus kotak untuk pindah rumah dengan kertas pembungkus if they want to make the purpose more explicit

But your original sentence is perfectly fine.

Sometimes, yes, if the subject is already obvious from context.

Malay often drops subjects when they are understood. But in a full standalone sentence, keeping kami is normal and clear. It tells you immediately who is doing the action.