Hey guys. I'm a Swedish-speaking American and I'm attempting to learn Czech on my own. I live in Oklahoma, so there's practically no classes I can take. That's fine, though.. I learnt Swedish on my own and I do enjoy a challenge, hence going with Czech. Anyway, let me get to the point. Considering Swedish nor English use cases (at least, not to the extent Slavic languages do), it's hard for me to grasp the concept of the 7 Czech cases. Previously, I had thought the genitive case was generally just for possessive situations. But, a Czech friend of mine showed me these different sentences to try to illustrate the difference. I still don't understand though: Jsou tu dívky - There're girls [here]. Je tu dívka. - There is a girl [here]. Je tu mnoho dívek. - There're many girls [here]. dívky and dívek both mean 'girls', but I understand that dívek is the genitive plural.. why do we switch from the nominative to genitive just because we added "many" to the sentence?