Is there any way to put into layman's terms what "Nominative", "Genitive", "Dative", "Accusative", "instrumental", and "Locative" mean? Because determining what version of ta, tej, tą, etc. has been my biggest struggle so far. Especially with words like water (do I use wode, woda, wody, or wodę?) and other words that could have different final letters. I haven't really hit a lesson that helps me understand it better.
Here you can find more explanations about Polish cases: http://mowicpopolsku.com/polish-grammar/cases/
Here you can find a simplified chart of declension: https://imgur.com/NjFhVJV