Tukang bangunan mengebor dinding, mengaci dinding, dan mengisi nat.

Tukang bangunan means a construction worker, builder, or workman.

• tukang = a skilled worker, craftsman, repair person, or someone who does a certain kind of practical job
• bangunan = building / construction

Together, tukang bangunan refers to someone who does building or renovation work.

It can refer to:

• one worker: a construction worker
• workers in general: construction workers

Indonesian often does not mark singular vs. plural unless the context makes it necessary.

Because Tukang bangunan is the subject of the sentence — the person doing the actions.

The sentence follows a very common Indonesian pattern:

Subject + verb + object

So here:

• Tukang bangunan = subject
• mengebor, mengaci, mengisi = verbs
• dinding, dinding, nat = objects

That is very similar to English word order: The construction worker drills the wall, plasters the wall, and fills the grout.

Bor is the root word, and mengebor is the active verb form.

The prefix here is meN-, which is a very common verb-forming prefix in Indonesian. It often marks an active verb used when the subject is doing the action.

So:

• bor = drill
• mengebor = to drill / drills

A useful detail: with many one-syllable roots, Indonesian often uses menge-. Since bor has one syllable, it becomes:

• bor → mengebor

This is similar to:

• cat → mengecat = to paint
• pel → mengepel = to mop

Mengaci comes from the root aci.

• aci refers to a finishing plaster or cement coating used to smooth a wall surface
• mengaci means to apply that coating, to plaster, to skim-coat, or to smooth a wall with cement/plaster

The meN- prefix changes form depending on the first sound of the root. With aci, it becomes:

• aci → mengaci

So mengaci dinding means something like:

• to plaster the wall
• to skim-coat the wall
• to smooth the wall with a cement finish

Nat is the grout line or joint between tiles.

So mengisi nat means:

• to fill the grout lines
• to grout
• to fill the tile joints with grout

This is common in construction or renovation contexts.

It is repeated because both verbs have dinding as their object:

• mengebor dinding = drill the wall
• mengaci dinding = plaster/smooth the wall

Repeating the object is completely natural in Indonesian, especially in a list of separate actions.

You could also sometimes combine the structure if the same object clearly belongs to multiple verbs, for example:

• Tukang bangunan mengebor dan mengaci dinding.

That would mean:

• The construction worker drills and plasters the wall.

But in your sentence, repeating dinding makes each task sound more distinct and clear.

This is just the normal way to list items in Indonesian, much like in English.

So:

• mengebor dinding, mengaci dinding, dan mengisi nat

works like:

• drill the wall, plaster the wall, and fill the grout

Indonesian commonly uses:

• commas between earlier items
• dan before the last item

Not exactly in the same way as English.

Indonesian verbs do not change form for tense. So mengebor, mengaci, and mengisi do not specifically mean present, past, or future by themselves.

Without extra context, the sentence can mean things like:

• The construction worker drills the wall, plasters the wall, and fills the grout.
• The construction worker is drilling the wall, plastering the wall, and filling the grout.
• The construction worker drilled the wall, plastered the wall, and filled the grout.
  if the context already makes it past

Time is usually shown by context or time words such as:

• sedang = currently
• kemarin = yesterday
• besok = tomorrow
• sudah = already
• akan = will

By itself, it could be either, depending on context.

Indonesian often leaves number unspecified unless it matters.

So Tukang bangunan can mean:

• the construction worker
• construction workers

If you want to make it clearly plural, you could say:

• para tukang bangunan = the construction workers
• tukang-tukang bangunan = construction workers

But in everyday Indonesian, the plain form is often enough.

The sentence lists the actions, but it does not explicitly mark whether they are:

• happening one after another,
• happening as part of one job,
• or just being described as tasks the worker does.

In real life, these probably suggest a work sequence or set of tasks:

1. mengebor dinding
2. mengaci dinding
3. mengisi nat

But grammatically, the sentence mainly gives a series of actions. If you wanted to make the order clearer, Indonesian could add words like:

• lalu = then
• kemudian = then / afterwards
• setelah itu = after that

Because they are all active verbs formed with the meN- prefix family.

Here are the roots and their active forms:

• bor → mengebor
• aci → mengaci
• isi → mengisi

This prefix often means the subject is actively doing the action.

The exact form changes depending on the root:

• meng-
• men-
• mem-
• meny-
• menge-

So the three verbs look similar because they belong to the same very common active verb pattern.

Yes, in natural English, mengisi nat is often best translated as to grout.

Literally, it is:

• mengisi = to fill
• nat = grout lines / tile joints

So the literal meaning is to fill the grout lines, but in smoother English, to grout the tiles or simply to grout is often the most natural translation.

Because Indonesian does not have articles like English a, an, and the.

So:

• tukang bangunan can mean a construction worker or the construction worker
• dinding can mean a wall or the wall

The exact meaning depends on context.

This is very normal in Indonesian. Learners often need to get used to the idea that nouns can be more flexible and less explicitly marked than in English.

Yes, it is natural, especially in a construction or renovation context.

It sounds like a description of what a construction worker is doing or what tasks are being done:

• mengebor dinding = drilling the wall
• mengaci dinding = plastering/smoothing the wall
• mengisi nat = filling the grout lines

The vocabulary is somewhat specialized because it belongs to building work, but the grammar itself is very normal and natural.