We released an interactive toy of a page to help people break down Japanese Sentence Structure.
The page has also has informative tables to help scholars understand the major differences between the Japanese Complete approach to categorizing terms, compared with classical pedagogical methods for teaching Japanese.
https://japanesecomplete.com/reverse-engineer/
Look for the buttons to engage each cell, for the examples are interactive!
Additionally, our companion guide that you can use to start studying Japanese is completely free. While one needs a subscription for full access, you can still learn 120 of the most common Japanese words and the essentials for sentence structure with our Essential Japanese: The Mental Model, absolutely free.
Your “Essential Japanese – The Mental Model” says it is free to language learners, but the PDF (https://learnjapanesebest.files.wordpress.com/2020/02/essential_japanese_mental_model_f1r2.pdf) is not accessible
Thank you so much for pointing this out. We have updated the link at https://japanesecomplete.com/guide to our CDN available here http://jpc0.b-cdn.net/essential_japanese_mental_model_f1r2.pdf