I up this thread because I have some doubt about
genitive as well.
I was studying my grammar book and there are some sentences construction about genitive I do not understand.
1) Я был в гостях
у друга --------- what is for this у + genitive without a negation or the verb ectb? it is not possession as well... what does it mean?
2)I have to translate some sentences frome Italian, translated are (I read the transaltions in the book solutions) << Вчера был день рожденна Тани, сестр
ы Олега. В гостях
у Тани были друзья Тани и Олега >>
Again I don't understand the sense of that у + genitive (is it something like "in her place?!" ) and that ending, сестр
ы : why genitive? Oleg must be genitive no doubt about it, but Tanja shouldn't be nominative?!
"The sister" I think must be nominative, so--- сестр
а , and Oleg genitive. What am I misleading?
3) other sentence: << на столе лежат книги Марио >>
why that ending for Mario, like the nominative? On the book ther is the same sentence for the person name << Марко >>
thank you guys
p.s. << в гостях >> What construction is? I still don't have studied that ending... just out of curiosity