for reasons unknown to me i love declesions. up to now i can handle declensions up to 8 cases without problem, but when i see a language that has 15, 23 cases i don't know if i am going mad or excited. anyway, i had a look at the basque declesion and it has 15 cases. nice!. i'd like to compare with the languages above quoted as i have some materials if the use/notion of cases is the same or not. one stricking fact is that all these languages lack accusative. what do you use instead? for example; "i see the house". do you have ergativity in these language (tell about the one you speak, of course i am not expecting you to know all these languages). please tell me about the notion in every case. i guess it is a bit of work, so if you tell me a little and show me to any informative text about it, it'll be allright. thanks to answerers cause i know this is not a simple question that takes just a minute to answer.