Should I learn English grammar?
I have no idea about English grammar any more...
I've learned some things when I was 13, 14. That is then 34 years ago. If I write or speak English, I do not think about it. I have done a lot with English. First at the age we are starting to read, we automatically learn English from watching TV. The sound is in English, the subtitles are in Dutch. Then we had languages in high school. Later in the university, most books we had to study about information science were in English. In my career, articles about new software development tools, are also in English. Etcetera, etcetera.
So, I cannot explain why I write or say a sentence like I do, any more than well .. may-be my mother tongue more or less. Should I nevertheless study grammar rules to improve myself? Or should I just rely on my 'subconscious grammar'.