Okay, I know this question is probably a bit too nit-picky, but it's how my brain works. Thank you for bearing with me!
My workbook has a chapter on "The Progressive Tenses". The next chapter is called "Compound Tenses: The Present Perfect and the Past Perfect". In the introduction to the chapter on the "Compound Tenses", it explains that these
formas compuestas "consist of more than one verb element ... These tenses are conjugated with a basic form of a verb called a past participle..."
But wait! Aren't the progressive tenses formed with "more than one verb element"? Shouldn't the progressive tenses be included under the sub-heading of "compound tenses"/"formas compuestas"?
Thanks!