Nakabukas ang bintana sa sala dahil mainit sa loob.

Nakabukas means open or in an open state. In this sentence, Nakabukas ang bintana means The window is open.

It usually describes a current condition, not the action itself. So it focuses on the fact that the window is already open, not on who opened it.

Here it means open, not opened in the English action sense.

A useful distinction is:

• nakabukas = is open / has been left open
• binuksan = opened as an action

So Nakabukas ang bintana describes the window’s state.

This is a very common Filipino word order. The sentence often begins with the predicate or description, and then the topic marked by ang comes after.

So:

• Nakabukas = the description
• ang bintana = the thing being described

Literally, it feels like:

• Open the window...

But natural English is:

• The window is open...

This predicate-first pattern is very normal in Filipino.

Filipino often does not use a separate verb equivalent to English is/are in simple descriptive sentences.

So instead of saying:

• The window is open

Filipino simply says:

• Nakabukas ang bintana

Likewise:

• mainit sa loob = it is hot inside

There is no need to insert a separate word for is.

Ang marks the topic of the sentence, often similar to what English speakers think of as the subject.

In Nakabukas ang bintana, the sentence is talking about the window, so bintana is marked with ang.

A simple way to think of it here is:

• nakabukas = description
• ang bintana = the thing being described

So ang helps identify what the statement is about.

Yes. sa sala describes which window we mean.

• bintana = window
• sa sala = in the living room

So ang bintana sa sala means:

• the window in the living room

The phrase sa sala acts like a location phrase modifying bintana.

Sala means living room.

It is a very common word in Filipino. So:

• sa sala = in the living room

Dahil means because.

So the second part of the sentence gives the reason:

• dahil mainit sa loob = because it is hot inside

It connects the main statement to its cause or explanation.

Yes, very often.

• dahil = because
• kasi = also because, but usually more conversational

So you could say:

• Nakabukas ang bintana sa sala kasi mainit sa loob.

That sounds natural in everyday speech. Dahil can sound a little more neutral or slightly more formal.

Literally, it means hot inside.

• mainit = hot
• sa loob = inside

In natural English, you would translate it as:

• it is hot inside

This is another example of Filipino not needing a separate word for it is.

Because Filipino often leaves out the kind of dummy subject that English requires.

English needs:

• It is hot inside

But Filipino can simply say:

• Mainit sa loob

The idea is understood without adding a word for it.

Loob means inside, interior, or inner part, depending on context.

In this sentence:

• sa loob = inside

So mainit sa loob means it’s hot inside.

Both use sa, but they refer to different locations.

• sa sala = in the living room
• sa loob = inside

In the sentence:

• sa sala tells you where the window is
• sa loob tells you where it is hot

So the sentence means that the living-room window is open because the inside area is hot.

Yes. Nakabukas comes from bukas, which here has the idea of open.

Adding naka- often gives a meaning like in a certain state or set in a certain way.

So:

• bukas = open
• nakabukas = in an open state

Just be aware that bukas can also mean tomorrow in other contexts, so learners often notice that double meaning. In this sentence, it clearly means open.

Yes. That is also correct.

This version uses the ay form, which rearranges the sentence so the topic comes first:

• Ang bintana sa sala ay nakabukas dahil mainit sa loob.

This is often a little more formal or more deliberate in tone. In everyday speech, the original predicate-first version is very common:

• Nakabukas ang bintana sa sala dahil mainit sa loob.

Both are natural and correct.

Usually, yes.

Because of ang bintana, it normally refers to the window, meaning a specific or identifiable one, especially with sa sala narrowing it down.

So the sense is:

• the window in the living room

rather than just a window in a general sense.

Not really. It sounds natural as it is.

The only small thing to notice is that sa loob is somewhat general: it could mean inside the house, inside the room, or indoors, depending on context. Native speakers usually understand the intended meaning from the situation.

So the sentence is perfectly normal, and context fills in exactly what inside refers to.