Why is it 'meinen' Neffen and not 'meine'. It's plural accusative (I think)
Actually it's singular accusative, hence meinen:
Ich sah meinen Neffen - I saw my nephew
Ich sah meine Neffen - I saw my nephews
Yes, the extra -n in the accusative, now I see it, thank you
I heard it as Nessen for Neffen
I had to listen on slow speed. The woman was unintelligible.