I re-listened to Track 34 on Language Transfer and learned something new about gerunds or gerundios. I had been exposed to the construction on Duolingo but Mihalis explained that in Spanish the gerund form is only used when talking about something that's going on right now. He said that's why all along he's been teaching the present form as for example hablo means I speak or I am speaking. But if someone interrupts you, you would say Estoy hablando versus hablo, because you are speaking right now, right at this moment.
Oh my gosh! What a revelation? That clears up so much of my confusion as to why it was used in some cases and some not. Which brings me to the first time I learned about gerunds and realized what Bailando actually meant 😊😊 Plus it gives me an excuse to post Enrique.