käyttäneen

Käyttäneen is the genitive past participle of the Finnish verb "käyttää," which means "to use." In Finnish grammar, the genitive past participle is a form that expresses an action that has been completed by someone or something, and it is used in various grammatical constructions. Its function is similar to the English "having used" or "used by."

The form "käyttäneen" specifically indicates that the action of using happened in the past and that the subject performing the action is in the genitive case. This often occurs when the participle functions as an adjectival modifier in a subordinate clause or when it describes a subject in a more complex sentence structure. For instance, it might appear in phrases like "mies, käyttäneen kirjaa" (the man, having used the book) or "kirjan, käyttäneen hänen" (the book, used by him). The ending "-neen" is characteristic of this specific participle form. Understanding the genitive past participle is crucial for comprehending the nuances of Finnish verb conjugation and sentence construction, particularly in more formal or literary contexts.