"The boy is sitting close to his dad."

Translation: Pojken sitter nära sin pappa.

[442doBeograda]

Seems to be a preposition here...

[EquanimousLingo]

nära is the preposition here.

[IsaacSeybo]

would "pojken sitter nara hans papa" be correct as well?

[luxolo82]

Hans would indicate "his father" but not necessarily boy from the sentence. It could be some other persob you are refering to. "Sin" in this sentence is directly connected to the subject of the sentence