Breakdown of Onun kötü stratejisi yüzünden yanlış şifreyi girdik.
o
that / he / she / it
kötü
bad
girmek
to enter
şifre
password
Questions & Answers about Onun kötü stratejisi yüzünden yanlış şifreyi girdik.
Why use yüzünden here instead of another word for "because of"?
The word yüzünden is used specifically when assigning blame or talking about a negative cause (literally, "from the face of"). Since the "bad strategy" led to a mistake, yüzünden is the perfect fit. If a good strategy had led to a positive outcome, you would use sayesinde (thanks to) instead.
How does the grammar work between Onun kötü stratejisi and yüzünden?
yüzünden simply follows a noun or a completed noun phrase. Here, the core phrase is the possessive Onun stratejisi (his strategy), with the adjective kötü (bad) sitting in the middle. You don't need to add any extra connecting suffixes to stratejisi before adding yüzünden.
Why does şifre have the -(y)i suffix?
The word şifre (password) takes the specific direct object suffix (the accusative case -(y)i) because the speakers are acting upon a specific, defined item: the wrong password.
I learned that girmek (to enter) takes the dative case, like in odaya girdik (we entered the room). Why isn't it used here?