Nasa sahig ang sapatos mo.

Nasa is used to show location. In English, it often corresponds to is/are in, on, at depending on the context.

So in Nasa sahig ang sapatos mo, nasa sahig means is/are on the floor.

You can think of the pattern as:

nasa + place + ang/si + thing/person

For example:

• Nasa mesa ang libro. = The book is on the table.
• Nasa kusina si Maria. = Maria is in the kitchen.

Filipino often does not use a separate verb like English to be in this kind of sentence.

In English, you say:

Your shoes are on the floor.

In Filipino, the location expression itself can serve as the predicate:

Nasa sahig ang sapatos mo.

So the sentence is complete without a separate word meaning are.

Yes. Sa is a very general location marker. It can correspond to in, on, at, or to in English.

The exact English preposition depends on the noun that follows and the situation.

Here:

• sahig = floor
• in English, we normally say on the floor

So sa becomes on in natural English here.

Other examples:

• sa bahay = at home / in the house
• sa mesa = on the table / at the table
• sa Maynila = in Manila

Ang is a marker for the topic of the sentence. It is not exactly the same as English the.

In Nasa sahig ang sapatos mo, ang marks sapatos mo as the thing being talked about.

So the structure is roughly:

• Nasa sahig = the location statement
• ang sapatos mo = the item being located

A useful way to understand it is:

As for your shoes, they are on the floor.

That is not always how you would translate it into natural English, but it helps explain what ang is doing.

In Filipino, short possessive forms usually come after the noun.

So:

• sapatos mo = your shoes
• libro ko = my book
• bahay niya = his/her house

This is one of the most common noun patterns in Filipino.

There are also longer possessive forms, such as iyong, but the short post-noun form is very common in everyday speech.

Yes, you can also say Ang sapatos mo ay nasa sahig.

Both are grammatical:

• Nasa sahig ang sapatos mo.
• Ang sapatos mo ay nasa sahig.

The first one is very natural and common, especially when simply stating where something is.

The second one is also correct, but it can sound a little more formal, more explicit, or more like you are highlighting ang sapatos mo as the topic first.

Also, ay is not the verb to be. It is a marker often used in this inverted sentence pattern.

This is a very natural question, because English forces you to choose shoe or shoes.

In Filipino, sapatos is often understood from context. In many everyday situations, sapatos mo is naturally interpreted as your shoes, especially because people normally think of shoes as a pair.

If you want to make plurality more explicit, you can use mga:

• ang mga sapatos mo = your shoes

But in ordinary speech, ang sapatos mo can already sound natural depending on the context.

In standard Filipino, no. You normally need ang here.

The noun phrase sapatos mo needs a marker in this sentence, and ang is the correct one for the topic.

So the natural form is:

Nasa sahig ang sapatos mo.

Without ang, the sentence sounds incomplete or ungrammatical.

Nasa is commonly written as one word in modern Filipino when it functions as this location expression.

Historically, it comes from na + sa, but for learners, it is best to recognize nasa as a very common unit meaning something like is/are in/on/at.

So in a sentence like this, just learn nasa as the normal form:

• Nasa sahig ang sapatos mo.
• Nasa bahay siya.
• Nasa bag ang susi.

Yes, very natural.

Nasa sahig ang sapatos mo is a normal, everyday way to say that your shoes are on the floor.

It sounds conversational and idiomatic, not overly formal. A native speaker would easily say this in daily life.