Nasa abiso ang kondisyon ng apartment.

Nasa means is in / is on / is at depending on context. In this sentence, it tells you where something is located: the apartment’s condition is in the notice/listing.

Grammatically, nasa is the usual form used before a location phrase:

• Nasa mesa ang libro. — The book is on the table.
• Nasa abiso ang kondisyon ng apartment. — The apartment’s condition is in the notice.

You can think of nasa as introducing the location.

This is normal Filipino word order. Filipino often puts the predicate first and the topic after it.

So:

• Nasa abiso = predicate/location information
• ang kondisyon ng apartment = topic

That is why the sentence is structured as:

• Nasa abiso ang kondisyon ng apartment.

A more English-like order is also possible:

• Ang kondisyon ng apartment ay nasa abiso.

Both mean the same thing, but the first version is very natural in Filipino.

Ang marks the topic of the sentence. It does not simply equal English the, even though it is sometimes translated that way.

In:

• Nasa abiso ang kondisyon ng apartment

the phrase ang kondisyon ng apartment is the topic — the thing being talked about.

So ang is better understood as a grammatical marker, not just an article.

Because ng apartment means of the apartment.

In the phrase:

• kondisyon ng apartment

ng links kondisyon and apartment to show possession or association:

• the condition of the apartment

If you used sa apartment, it would usually mean in/at/to the apartment, which is a different relationship.

Compare:

• kondisyon ng apartment — condition of the apartment
• sa apartment — in/at the apartment

Abiso usually means notice, announcement, or sometimes a posted ad/listing, depending on context.

So in this sentence, abiso could refer to:

• a written notice
• an announcement
• a rental listing or ad

If the sentence is about housing or rentals, abiso may sound like the notice/listing where the apartment details appear.

Kondisyon is a borrowed word, ultimately from Spanish/English influence, and it is very common in Filipino.

It means condition or state.

Depending on context, you could also see more native or less borrowed alternatives such as:

• kalagayan — condition, situation, state

So:

• kondisyon ng apartment and
• kalagayan ng apartment

can be similar, though kondisyon is very natural in practical contexts like rentals, property, or product descriptions.

Yes. It is one noun phrase.

It breaks down like this:

• ang = topic marker
• kondisyon = condition
• ng apartment = of the apartment

Together:

• ang kondisyon ng apartment = the apartment’s condition / the condition of the apartment

So the sentence is literally structured like:

• In the notice is the condition of the apartment.

Yes. That is also correct.

Compare:

• Nasa abiso ang kondisyon ng apartment.
• Ang kondisyon ng apartment ay nasa abiso.

The first is the more typical predicate-first Filipino structure.
The second uses ay, which creates a more explicitly inverted or topic-first structure. It can sound a little more formal or emphatic depending on context.

Sa is a location marker meaning something like in, on, at, to.

Nasa is used when the phrase functions as the predicate meaning is in/on/at.

Compare:

• Nasa abiso ang kondisyon ng apartment. — The apartment’s condition is in the notice.
• Makikita ang kondisyon sa abiso. — The condition can be seen in the notice.

In the second sentence, sa abiso is just a prepositional/location phrase.
In the first, nasa abiso is the main predicate.

Apartment is very commonly used in modern Filipino, especially in everyday speech, ads, and real-estate contexts.

Apartamento also exists, but apartment is often more common in casual modern usage.

So ng apartment sounds natural.

A natural negated version would be:

• Wala sa abiso ang kondisyon ng apartment.

This means The apartment’s condition is not in the notice or The notice does not contain the apartment’s condition.

Here, wala sa is used instead of nasa to show absence.

It is understandable and grammatically fine. Depending on context, a speaker might also say something slightly different, such as:

• Nasa abiso ang detalye tungkol sa kondisyon ng apartment.
• Makikita sa abiso ang kondisyon ng apartment.
• Nakalagay sa abiso ang kondisyon ng apartment.

These can sound a little more natural if the intended meaning is the notice states/shows the apartment’s condition.

Still, Nasa abiso ang kondisyon ng apartment is a valid sentence and useful for learning the structure.