Forgive my ignorance, I didn't study through a serious German Grammar book yet but I will someday.
- I have a sample statement below for which I have a question.
Das ist der Freund, dessen Foto dir so gut gefallen hat.
That is the friend whose photo pleased you - (==> you like his photo.)
(side story : I can't find the exact matching word for gefallen. Das buch gefällt mir gut. => I like the book. The object and subject should be changed to use English word 'like'. anyway..)
I guess because Foto is male(der Foto), 'dessen' is used. ('dessen' ends with -n like 'sein' which is used for male noun.) Now, what if it was not the photo but 'ein Auto' (neutral) or 'eine Wohnung'(female)?
1-A. Das ist der Freund, dessen Auto dir so gut gefallen hat. (<- is it correct?)
1-B. Das ist der Freund, dessen Wohnung dir so gut gefallen hat. (<- is it correct?)
My wild guess is A is correct but B should be changed to use 'desse Wohung' (like seine Wohnung). Is my guess correct?
- In above sentences, the relative possessive pronoun was used for a subjective word. What if it is used for, for example, a Dative case? How do you say
2-A. English : That is the friend about his photo you have told me.
(my guess) Das ist der Freund, von dessem Foto du mir erzält hat.
2-B. English : That is the friend about his apartment you have told me.
(my guess) Das ist der Freund, von desser Wohnung du mir erzält hat.
Please explain to me what the correct forms are of 'dessen' above. (I think I'm making my own grammar here.. :) )