päällystettyinä

Päällystettyinä is the inessive plural form of the Finnish word "päällystetty." "Päällystetty" is the past passive participle of the verb "päällystää," which means to coat, cover, or pave. Therefore, "päällystettyinä" literally translates to "being coated," "being covered," or "being paved" in the plural, referring to multiple things that have undergone this process.

In practical usage, "päällystettyinä" would describe a state or condition of multiple objects or surfaces. For example, one might say "Tiet olivat päällystettyinä asfaltilla" which means "The roads were paved with asphalt." Here, "päällystettyinä" refers to the roads in their state of being paved. It indicates that the action of covering or paving has been completed on these multiple items, and they are now in that resultant state. The suffix "-inä" signifies the inessive case in the plural, indicating "in" or "within" a state or condition. This grammatical form is crucial for conveying the plural subject and its passive state of being.