[Nagoyankee]

Jaydelart is right. I doubt if you will get good answers in General Discussion. People will be answering saying "I think...", "I heard that.." , etc.

Believe me, this question is much more complex than you have probably thought. There are many exceptions as well as general rules. Those who don't speak Japanese fluently or who have never attended school in Japan will not be able to answer this.

I will gladly give my answer in the Language section.