"They are praising the knights."

Translation: Azantī rijis.

[FlavienAdj]

Why not azantyssy rijis?

[xPsGoDWh]

Because that would be "the knights praise".

[LikeTheDog]

Azantyssy is the nominative case ,plural. So if the knights were the subject of the sentence, you would have used azantyssy.
But now, the knights are the object of the sentence and therefore need to be 8n the accusative case.