Nakaupo si Lola sa upuan sa tabi ng bintana.

Yes, nakaupo is the main predicate of the sentence.

In Filipino, it is very common for the predicate to come first, so a sentence often starts with something like a verb, adjective, or state word. Here, nakaupo means sitting or more literally in a seated position.

So the structure is roughly:

• Nakaupo = sitting / seated
• si Lola = Grandma
• sa upuan sa tabi ng bintana = on the chair beside the window

Filipino does not need a separate verb like is in this sentence. So instead of saying Grandma is sitting..., Filipino can simply say Nakaupo si Lola...

Nakaupo describes a state or condition: someone is seated or sitting down.

It is often translated as:

• is sitting
• is seated
• sometimes just sits, depending on context

But grammatically, it is closer to being in a sitting position than to an action in progress. So nakaupo focuses more on the result/state than on the act of lowering oneself into a chair.

It comes from the root upo, which is related to sit.

Si is a personal marker used before a singular person’s name.

Here, Lola is being treated like a personal name or title, so it takes si:

• si Lola = Grandma
• si Ana = Ana
• si Kuya = older brother / big brother, when used like a name

This marker tells you that Lola is the specific person being talked about.

Because Lola here is being used like a name or title of address, similar to Grandma in English.

Compare:

• Si Lola ay nakaupo. = Grandma is sitting.
• May lola ako. = I have a grandmother.

In the first sentence, Lola refers to a specific person, so it is capitalized. In the second, lola is just a common noun.

Because the sentence contains two location phrases.

1. sa upuan = on the chair
2. sa tabi ng bintana = beside the window

So the second sa is not repeating by mistake. It introduces another location expression.

You can think of it like this:

• Grandma is sitting on the chair
• the chair is beside the window

So the full phrase means on the chair beside the window.

Sa is a very flexible location marker. Depending on context, it can correspond to English words like:

• in
• on
• at
• to
• into

In this sentence:

• sa upuan is naturally translated as on the chair
• sa tabi ng bintana is beside the window

So sa does not have just one fixed English equivalent. You choose the best English preposition based on the situation.

Because tabi here works like a noun meaning side or beside-area, and ng links it to what it is next to.

So:

• tabi ng bintana = the side of the window / beside the window

This is a very common Filipino pattern:

• harap ng bahay = front of the house
• likod ng simbahan = back of the church
• tabi ng kalsada = side of the road / beside the road

Here, ng is not an object marker. It is linking tabi to bintana.

Upuan comes from the root upo (sit) plus the suffix -an, which often indicates a place associated with an action.

So upuan literally means something like a place to sit or seat.

Depending on context, it can mean:

• chair
• seat
• bench
• a place for sitting in general

In this sentence, chair is a natural translation, but the word itself is a bit broader than just one type of chair.

Because Filipino often does not use a separate verb equivalent to English is/am/are in sentences like this.

English says:

• Grandma is sitting...

Filipino can say:

• Nakaupo si Lola...

The idea of is is understood from the sentence structure. This is very normal in Filipino.

Yes. A more formal or rearranged version is:

Si Lola ay nakaupo sa upuan sa tabi ng bintana.

This means the same thing.

The difference is mostly in structure:

• Nakaupo si Lola... = more natural everyday predicate-first order
• Si Lola ay nakaupo... = topic first, often a bit more formal or emphatic

Both are correct.

Yes, it is.

Nakaupo si Lola. already means Grandma is sitting or Grandma is seated.

The rest of the sentence simply adds more detail about where she is sitting:

• sa upuan = on the chair
• sa tabi ng bintana = beside the window

So the location phrase is extra information, not something required to make the sentence grammatical.

In standard Filipino, ng is pronounced like the ng sound at the end of English song.

So:

• ng = /ŋ/

It is a single sound, not n-g separately in normal pronunciation.

So tabi ng bintana sounds roughly like:

• ta-bi nang bin-ta-na

But the ng itself is the same sound as the ending of sing.

A helpful breakdown is:

• Nakaupo = predicate
• si Lola = topic/focus noun phrase
• sa upuan sa tabi ng bintana = location phrase

So the overall pattern is:

Predicate + marked noun + location

This predicate-first order is very common in Filipino. English speakers often expect the subject first, but Filipino often puts the descriptive or verbal part first instead.