The kind of sentence diagramming done in schools really looks nothing like the syntax trees used in formal linguistics, though. It&#x27;s about 100 years obsolete, for one thing. The Language Log article another commentator posted gets at that. Also the Wikipedia article on [Parse Trees][0] is a good intro.<p>[0]: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Parse_tree" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Parse_tree</a>