[fatum]

Thanks for the reply! The Rikai-chan plugin is really useful. Really useful information, I believe that I was able to correct the post.

Would this be a valid sentence?

あなたは日本語わかりますか
Do you understand Japanese?

I'm not sure if I need to add a preceding particle to 日本語. Also, is わかります the correct verb to use? I believe I remember reading that わかります is only for understanding a class, but it could also work for other ideas outside of a class?