Questions & Answers about Nasa labas ng bahay ang aso.
Not a separate action verb in the way English has is. This is a very common kind of non-verbal sentence in Filipino.
The predicate is nasa labas ng bahay, and the topic is ang aso. So the sentence is still complete even without a standalone verb like to be.
Nasa is a very common locative form that usually means something like is in, is at, or is on, depending on context.
So:
- Nasa bahay ang bata = The child is at home.
- Nasa mesa ang libro = The book is on the table.
In your sentence, nasa labas means is outside.
Because Filipino often uses predicate-first word order.
What is being said about the dog comes first:
- Nasa labas ng bahay = outside the house
Then the topic comes after:
- ang aso = the dog
So the structure is very natural in Filipino, even though English usually puts the subject first.