Genitive case is confusing me. Let's consider the following two sentences:
Das ist das Auto deiner Schwester.
Das ist die Frau, deren Bruder krank ist
In the first sentence, it is taking the gender of the second word, Schwester
to write deiner
. If it took first one, Auto
, it would have been deines
.
In the second sentence, it is taking the gender of the first word, Frau
to write deren
. If it had taken the second one, Bruder
, it would have been dessen
.
There seems to be no consistency in which word is used, to determine what pronoun to use. Am I missing a rule??