I asked a friend what is the gerund form of "to run", and he gave me a strange look and said "what the f--k are you talking about?"
I got a similar response when I asked about participles.
Apparently the average American does not know all the technical terms for the different verb forms.
If I ask the average Russian person a question like "why is the instrumental case used here instead of the genitive case?" would they understand the question?