The Preterit Continued
Below is an outline depicting how tense and mood is related.

1 Answer
Personally, that chart looks like gibberish. I would throw it away, and then throw dirt on top of it.
It states that moods are a subcategory of preterite, and that perfect, among others, is a subcategory of moods
Also, that moods are a subcategory of future, and that perfect is one of several subcategories of mood.
Really?
Maybe this was the author's first attempt at using bullet points, or a keyboard with a tab key?
Honestly, I'd think picking any random verb, and looking at it in the conjugator on this site (or almost any site) would provide a much better overview.
Respectfully, I've honestly never seen a more non-sensical chart..
I think I liked that chart better when it was small and blurry ![]()
There are many people much more knowledgeable than me here, but if I had to hazard a guess, I'd say your original question, which seemed quite apples to oranges, is understandable, if your source of reference was the link in your comment above. It's a VeRY strange chart.
I hope someone better than me can shed some light here.