työkaluissa
Työkaluissa is the inessive plural form of the Finnish noun työkalu, meaning tools. The word indicates location inside a group of tools or within the interior of several tools. In Finnish grammar, työkalu is a compound of työ (work) and kalu/kalut in older usage, and its plural is työkalut. The inessive plural suffix -issa/-issä is added to the plural stem to form työkaluissa, reflecting a location “in the tools.”
Työkaluissa is used when describing where something is located relative to a collection of tools or inside
Ruuvimeisselit olivat työkaluissa. (The screwdrivers were in the tools / in the toolbox.)
- Työkalussa: in the tool (singular inessive)
- Työkalujen: of the tools (genitive plural)
These forms illustrate how Finnish uses different case endings to indicate location and possession related to
Työkalu is a native Finnish compound, with työ meaning work and kal(u) meaning instrument or implement.