Quote Originally Posted by Antonio1986 View Post
Back again to this annoying Genetive:
"Вчера вечером я звонил тебе, но тебя не было дома".
Как вы объясняете это феномен. Why we don't use Ty. It is again Genetive of negation?
And yes, it's genitive of negation. But here it is mandatory.

Нет + Gen. = There is no something;
Не было + Gen. = There was no something;
Не будет + Gen. = There will be no something.

Or somebody.

The word order can be changed. The genitive cannot be replaced by any other case.