I watched the youtube video on Semantic Roles, but there's a lot mentioned that I don't know what they mean or how to use them. The Clause Participants was hard to grasp, in particular the With Stimulus, Agent, Patient, Experiencer, etc, sections.
Also the Case Frames.
Are these all things that can be better understood going over a English grammar book 101? or are they still Greek grammar concepts? Where can I become more familiar with these tools.