Looks cool! Some of it seems very intuitive, like the arrow pointing back to indicate the past, or the double arrow to indicate plural. I could imagine a set of symbols like this being a very nice addition to a dictionary allowing fast identification of the part of speech and conjugation.

My TODO list is already way too long with core Readlang stuff to do this kind of integration at the moment, currently I don't even detect whether a word is a noun, verb, etc. It's all handled by google and the external dictionaries. I look forward to following your progress though. Good luck!