This is a great example of why if you’re learning a language, once you pass the beginner stage you should be spending the majority of your time reading and list

This is a great example of why if you’re learning a language, once you pass the beginner stage you should be spending the majority of your time reading and listening, some time speaking and writing, and almost no time trying to learn grammar and other things. Even if you could somehow learn all the little rules like this, your brain won’t integrate them in a way you can use naturally. Unfortunately a lot of formal language courses and schools still focus on learning grammar, word usage etc in a top down way.