Questions & Answers about Ktoś podrzucił ten list pod moje drzwi.
How does the prefix pod- in podrzucił relate to the lesson's theme of stealthy actions?
The base verb rzucić means "to throw." Adding the prefix pod- gives it a sneaky or covert nuance, creating podrzucić, which translates to "to secretly plant" or "to slip something to someone." Interestingly, it also retains the literal spatial meaning of "to throw under," which perfectly matches slipping a letter under a door!
Why do we use the Accusative case for pod moje drzwi instead of the Instrumental?
The preposition pod takes the Accusative case when describing motion toward a destination (answering the question "where to?"). Because the person actively moved the letter to put it under the door, we use the Accusative. If the sentence was just describing a letter that was already lying there, you would use the Instrumental case (pod moimi drzwiami).
Drzwi means a single door here, so why does the pronoun moje look like a plural form?
In Polish, drzwi is a "plural-only" noun, meaning it has no singular form—just like the English word "scissors." Even when you are talking about a single door, you must use plural adjectives and pronouns, which is why it pairs with the non-masculine-personal plural pronoun moje.
What is the imperfective equivalent of podrzucił if this action was happening repeatedly?