I am still struggling sometimes to understand how it works with adjective endings. I already once asked a question about another expression and now I again found something I cannot explain. I don’t know which rule should I follow.
This is the sentence:
Für seine guten Leistungen überraschte ihn die Mutter mit einem neuen Fahrrad
My problem regards specifically the first part of the sentence Für seine guten Leistungen. I thought that since there is the preposition für, which just goes with accusative, I would need to write Für seinen guten Leistungen.
I add this picture, which is what I always follow when putting endings here and there. Which declension should my example follow? — First (prima) declension, second (seconda) or third (terza)?
- I guess that the first one does not fit, maybe in the second one or the third one.
The fact that before sein there is the preposition für confuses me.
- It is second declension even though before sein there is für?
- Or is it the third one because there is actually no article (der, die, das) in für sein[…] gut[…] (= preposition, possessive adjektiv, adjective)
Can someone explain me why the endings are -e and then -en?