Kami duduk di bangku taman sambil menunggu hujan reda.

Kami means we, but it is the exclusive form: it includes the speaker and someone else, but not the listener.

By contrast, kita is the inclusive form of we: it includes the speaker and the listener.

So Kami duduk... means something like We were sitting..., where the person being spoken to is not part of that group.

Duduk means sit or be seated. In this sentence, it naturally means were sitting or sat, depending on context.

Indonesian often does not mark tense the way English does. The verb itself usually stays the same, and time is understood from context.

So:

• Kami duduk can mean we sit, we are sitting, we sat, or we were sitting
• the surrounding context tells you which one is meant

If you want to make the ongoing action extra explicit, you could say Kami sedang duduk..., but it is not necessary here.

Di is the preposition meaning in, on, or at, depending on context.

Here, di bangku taman means on the park bench.

A very important learner point is that:

• di as a preposition is written separately: di bangku
• di- as a passive prefix is written together with the verb: for example ditulis

So in this sentence, di is just the location marker.

Bangku means bench, and taman means park or garden.

So bangku taman literally means park bench or garden bench.

Indonesian commonly puts the main noun first and the describing noun second. So:

• bangku taman = bench of the park / park bench
• meja makan = dining table
• rumah sakit = hospital, literally something like sick-house

This noun order is very common in Indonesian.

Sambil means while, especially in the sense of doing one thing at the same time as another.

In this sentence:

• duduk = sitting
• sambil menunggu = while waiting

So sambil connects two actions done by the same subject at the same time.

A good way to think of it is:

• Kami duduk ... sambil menunggu ... = We sat ... while waiting ...

Tunggu is the base form, meaning wait.

Menunggu is the active verb form built with the meN- prefix. In many ordinary sentences, this is the form you use for an active action:

• tunggu = wait / the root
• menunggu = to wait / waiting

So sambil menunggu hujan reda means while waiting for the rain to ease up.

For learners, it is useful to know that the meN- prefix often marks an active verb used in normal sentence structure.

Hujan means rain and reda means subside, let up, or ease off.

So hujan reda means the rain subsides or the rain lets up.

This is slightly different from saying the rain completely stops. Reda often suggests that the rain becomes weaker or dies down, though in context it can also imply that the bad weather has passed enough for people to continue what they were doing.

So:

• hujan berhenti = the rain stops
• hujan reda = the rain eases up / dies down / lets up

Here, reda is functioning like an intransitive verb or a stative predicate, meaning to subside or to become less intense.

Indonesian often uses words in ways that do not match English part-of-speech categories exactly. A word like reda can behave in a very predicate-like way without needing a separate verb such as to be.

So hujan reda is a complete idea meaning the rain subsides.

In Indonesian, menunggu directly takes its object without needing a separate word equivalent to English for.

So:

• menunggu bus = wait for the bus
• menunggu teman = wait for a friend
• menunggu hujan reda = wait for the rain to ease up

This is very normal in Indonesian. English needs for here, but Indonesian does not.

The sentence breaks down like this:

• Kami = we
• duduk = sat / were sitting
• di bangku taman = on a park bench
• sambil menunggu hujan reda = while waiting for the rain to let up

So the structure is:

Subject + main verb + location + simultaneous action

More literally: We sat on a park bench while waiting for the rain to subside.

Yes. You could say:

Kami sedang duduk di bangku taman sambil menunggu hujan reda.

Adding sedang emphasizes that the action was in progress.

Without sedang, the sentence is still completely natural. Indonesian often leaves this unstated unless the speaker wants to emphasize the ongoing nature of the action.

So:

• Kami duduk... = natural and normal
• Kami sedang duduk... = more explicitly we were in the middle of sitting / we were sitting

Yes. The subject of both actions is kami.

That is one reason sambil works well here: it links two actions done by the same people.

So the meaning is:

• we sat
• we waited
• both happened at the same time

Indonesian does not need to repeat kami before menunggu. That repetition would usually sound unnecessary.