inessiivisellä
In Finnish grammar, the inessive case is a locative case that indicates a state of being or location within something. It is typically formed by adding the suffix -ssa or -ssä to the end of a noun, depending on the vowel harmony of the word. For example, the word "talo" (house) becomes "talossa" (in the house) in the inessive case. Similarly, "metsä" (forest) becomes "metsässä" (in the forest).
The inessive case can be used to express both a physical location and a more abstract state.
The inessive case is a fundamental part of Finnish inflection and is used extensively in everyday language.