perustuvatkin
Perustuvatkin is a Finnish word that functions as a plural, third-person present indicative form of the verb "perustua," meaning "to be based on" or "to be founded upon." Therefore, "perustuvatkin" literally translates to "they too are based on" or "they are also founded upon." It is used in sentences to indicate that multiple subjects share a common basis or foundation for their existence, actions, or characteristics. The particle "-kin" attached to the word signifies "also" or "too," adding an element of comparison or inclusion. For example, one might say "Nämä teoriat perustuvatkin vanhoihin havaintoihin" which translates to "These theories too are based on old observations." The word highlights a connection or shared underlying principle between the subjects being discussed and something else previously mentioned or understood. Its grammatical function is to express a shared foundation, often implying a confirmation or elaboration of a previously stated idea.