Kun'yomi vs on'yomi confusion

[Leebo]

I answered a similar question yesterday.

On and Kun Yomi Readings

Firstly, I would say this is just something that happens naturally over time, even if you don’t dedicate time to studying it specifically. Gradually you will just be able to get a feel for which is which and which ones to use. There are some things that automatically rule certain things out, though, which can speed up your recognition I guess. For instance, an onyomi cannot be longer than 2 mora (note that something like しょう is still 2 mora, because しょ is just one mora). So if you see a readin…