Why I Don't Teach Much Grammar

I needed the captions at the bottom of the screen to understand a lot of what they were saying. I'm focused on people that already have some knowledge of English, but can't understand native speakers. And so for me, grammar is not that important. That's why I focus on listening practice. This is what I do when I learn other languages. So I'm just repeating that with English and helping you guys with that. The next question is, which prepositions to study to understand, like, really fast and reduced speech? So it's not necessarily about studying prepositions.