Pada Desember, keluarga kami biasanya beristirahat dan memasak bersama di rumah.

Pada is a preposition often used for specific points in time or time expressions, so pada Desember means in December.

In everyday Indonesian, people also often just say Desember by itself if the meaning is clear. So both can work:

• Pada Desember, keluarga kami biasanya...
• Desember, keluarga kami biasanya... (less formal / more conversational in some contexts)

Using pada makes the time phrase feel a little clearer and more complete.

For time expressions like months, Indonesian usually uses pada, not di.

• pada Desember = in December
• di rumah = at home

A simple way to remember it:

• pada → often for time
• di → often for place/location

So:

• pada Desember = correct
• di rumah = correct
• di Desember = not natural for this meaning

In Indonesian, possession usually works like this:

• noun + possessor

So:

• keluarga kami = our family
• literally: family our

This is normal Indonesian word order. English puts the possessor first (our family), but Indonesian usually puts it after the noun.

Other examples:

• rumah saya = my house
• teman mereka = their friend
• ibu kami = our mother

This is a very important Indonesian distinction.

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

So in keluarga kami, the speaker means our family, but not your family.

If the speaker said keluarga kita, it would suggest that the listener is included in that family or group.

So kami is the natural choice here unless the listener is meant to be included.

Biasanya means usually, and in Indonesian adverbs like this often come before the main verb.

So the structure here is:

• Pada Desember = time
• keluarga kami = subject
• biasanya = frequency adverb
• beristirahat dan memasak = verbs
• bersama di rumah = additional information

This placement is very natural:

• Keluarga kami biasanya beristirahat...

You may also hear slightly different placements in real usage, but this version is standard and clear.

Istirahat can be a noun (rest, break) and is also often used informally as a verb in conversation.
Beristirahat is the more clearly verbal and more formal/full form, built with the prefix ber-.

So:

• istirahat = rest / break / to rest (often informal in speech)
• beristirahat = to rest

In a well-formed written sentence like this, beristirahat sounds neat and natural.

Compare:

• Saya mau istirahat. = I want to rest. (very common in speech)
• Saya ingin beristirahat. = I want to rest. (more formal)

The prefix ber- often forms intransitive verbs, especially actions done by the subject without a direct object.

In beristirahat, it creates the verb to rest.

Some other common ber- verbs:

• berjalan = to walk
• berbicara = to speak
• berenang = to swim
• bekerja = to work

You do not need to translate ber- by itself every time; it is better to learn the whole word as a unit.

Not all Indonesian verbs use the same prefix.

• beristirahat is a common verb with ber-
• memasak is a common verb with meN-

The verb memasak means to cook. It comes from the root masak.

Different Indonesian verbs take different forms depending on the root and the kind of verb. So the mixed pattern here is normal:

• beristirahat = to rest
• memasak = to cook

You should not expect coordinated verbs to always have the same prefix.

Yes, in casual speech, masak is often used as a verb:

• Kami biasanya masak bersama.

That sounds natural in conversation.

However, memasak is the more complete and standard form, especially in more careful writing. So in this sentence, memasak is a good choice.

Here, bersama means together.

So:

• memasak bersama = cook together

It can also mean with, depending on context:

• Saya pergi bersama teman saya. = I went with my friend.

In this sentence, because the subject is already keluarga kami, bersama is best understood as together.

Grammatically, it most naturally attaches to the whole action that comes before it, so it can be understood as the family rests and cooks together.

However, in practice, many learners may first read it as especially linked to the closer verb memasak.

If someone wanted to make together very clearly apply to both actions, they might rephrase the sentence slightly. But the original sentence is perfectly natural, and the general meaning is that the family spends time together at home, resting and cooking.

In Indonesian, place expressions often come after the verb phrase.

So this order is very common:

• subject
• adverb
• verb(s)
• other information
• place

Here:

• keluarga kami
• biasanya
• beristirahat dan memasak bersama
• di rumah

This is a natural Indonesian sentence pattern.

Yes, Indonesian word order is somewhat flexible, especially for time and place phrases.

For example:

• Pada Desember, keluarga kami biasanya beristirahat dan memasak bersama di rumah.
• Pada Desember, keluarga kami biasanya di rumah beristirahat dan memasak bersama. (less natural)
• Di rumah, keluarga kami biasanya beristirahat dan memasak bersama pada Desember. (possible, but changes the emphasis)

The original version is the most natural and neutral.

Indonesian verbs do not change form for tense the way English verbs do.

Instead, Indonesian uses:

• time expressions → here, pada Desember
• adverbs → here, biasanya

So the sentence feels habitual because of biasanya (usually), and the time frame is given by pada Desember (in December).

Without biasanya, the sentence would just state the action in a more general way, and context would decide whether it is present, past, or future.

The comma is not always strictly necessary, but it is very common and helpful.

Because Pada Desember is an introductory time phrase, the comma makes the sentence easier to read:

• Pada Desember, keluarga kami biasanya...

In informal writing, people may leave it out:

• Pada Desember keluarga kami biasanya...

Both are understandable, but the comma is a good standard writing choice.

No. Indonesian does not use articles like the or a/an in the same way English does.

So:

• keluarga kami = our family
• di rumah = at home / in the house

The meaning is understood from context. Indonesian is often more compact than English in this way.

A more casual version might be:

• Kalau bulan Desember, keluarga kami biasanya istirahat dan masak bareng di rumah.

Differences:

• kalau bulan Desember = more conversational way to say in December
• istirahat instead of beristirahat = more casual
• masak instead of memasak = more casual
• bareng instead of bersama = informal together

The original sentence is more standard and polished, but both are natural depending on context.