Mandor memeriksa fondasi.

Memeriksa is the usual active verb form meaning to inspect or to examine.

It comes from the base periksa (inspect / examine) plus the prefix meN-, which often forms active verbs in Indonesian.

So:

• periksa = inspect / examination-related base
• memeriksa = to inspect, to examine

In a normal sentence with a subject doing the action, memeriksa sounds more natural than bare periksa.

The prefix meN- changes form depending on the first sound of the base word. With periksa, it becomes mem-, giving memeriksa.

This is part of a common Indonesian pattern:

• menulis from tulis
• membaca from baca
• memakai from pakai
• memeriksa from periksa

You do not need to memorize every sound change at once, but it is useful to recognize that meN- often marks an active verb.

Fondasi means foundation, especially in a building or construction context.

It is a loanword, and that is very common in Indonesian. Many technical or formal words come from other languages. In everyday Indonesian, you may also see pondasi, which is a very common alternative spelling and pronunciation. Both refer to a building foundation.

This follows the basic Indonesian word order:

Subject + Verb + Object

So:

• Mandor = subject
• memeriksa = verb
• fondasi = object

That is very similar to normal English word order:

The foreman inspects the foundation.

Indonesian usually does not use articles like the, a, or an.

So mandor could mean:

• a foreman
• the foreman

And fondasi could mean:

• a foundation
• the foundation

The exact meaning depends on context. If needed, Indonesian can add words to make something more specific, such as:

• seorang mandor = a foreman
• mandor itu = that/the foreman
• fondasi itu = that/the foundation

No, not by itself. Indonesian verbs usually do not change form for tense.

So Mandor memeriksa fondasi could mean:

• The foreman inspects the foundation
• The foreman is inspecting the foundation
• The foreman inspected the foundation

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

• sekarang = now
• kemarin = yesterday
• besok = tomorrow

A simple approximate pronunciation is:

MAHN-dor muh-muh-REEK-sah fon-DAH-see

A few helpful notes:

• mandor: the a is like the a in father
• memeriksa: stress is not as strong as in English, but rik is often the clearest syllable
• fondasi: fohn-DAH-see

Indonesian spelling is generally quite phonetic, so words are usually pronounced close to how they are written.

Yes, depending on context. Indonesian nouns do not have to change form for plural.

So fondasi can mean:

• foundation
• foundations

If the speaker wants to make plurality very clear, they might use reduplication:

• fondasi-fondasi = foundations

But in many real sentences, the singular/plural meaning is left to context.

Yes. That would mean The foreman is inspecting the foundation and makes the ongoing action clearer.

Compare:

• Mandor memeriksa fondasi = the foreman inspects / is inspecting / inspected the foundation
• Mandor sedang memeriksa fondasi = the foreman is currently inspecting the foundation

Sedang is often used when you want to emphasize that the action is in progress.

It is a normal, natural sentence, and it sounds especially appropriate in a construction or workplace context.

Some words in it are slightly more technical or professional:

• mandor = worksite supervisor / foreman
• fondasi = foundation
• memeriksa = inspect / examine

So it is straightforward Indonesian, but the topic is specific to construction or inspection.