Learn Portuguese (Portugal): A bicicleta dele está na rua.

In Portuguese, words like dele (his), dela (her), deles, and delas (their) always come after the noun they describe. You also need to use a definite article like a or o before the noun. So, instead of saying "his bicycle", you are literally saying "the bicycle of him" (a bicicleta dele).

Bicicleta is a feminine word. Why do we use dele instead of dela?

The word dele matches the owner, not the object being owned! Because the bicycle belongs to a man, we use dele (which comes from de + ele). If the bicycle belonged to a woman, we would say a bicicleta dela, even though the bicycle itself is always a feminine object.

Why use está instead of é for "is" in this sentence?

We use está (from the verb estar) because we are talking about a physical location. In Portuguese, estar is used for where things are located and for temporary states, while ser (where é comes from) is used for permanent characteristics.

Where does the word na come from?