"Vala riñe urnes."

Translation: The man sees a girl.

[liz26982]

Why cant it be "the man sees the girl" how you know if its the or a?

[LikeTheDog]

It can.

You do not know out of context if it is "the" or "a" in high valyrian.

[Ansaraa]

what are​ the differences between riñe, rina and riñi?

[deactivated user]

Riña is the nominative case (who? - a/the girl). Riñe is the accusative case (to see whom? - a/the girl). Riñi is the plural form (who? - (the) girls).