The partitive case is complicated! It's one of those subjects that will take you many years to be able to use fluently and without doubt. So let's start!
The accusative case has an interesting history due to the controversy among linguists it has sparked. Should it be named based on its function or its looks?
The genitive plural is one of the harder plural cases, due to the variations it allows for. In this article, we focus on the genitive plural of short words.
I saw "omin silmin" how he "aamuin illoin" walked on the beach "avojaloin" and "kyynelsilmin". Try to make sense of the Finnish in the instructive case!