I'm an non-immigrant came to US for my research purpose. I am not a native English speaker. I have never taken English that much seriously, may be because I had no problem in speaking English and understanding others who speak in English to me.
I can comprehend, express myself and pronounce English good enough. But what I struggle at is with grammar.
I have seem most of Americans don't mind about English grammar, unless that makes no sense. And for most of the time people don't follow grammar despite english being their first language. But for me it's a big deal. I'm into academics and sooner or later a major part of my work will involve writing academic papers.
My question is, is there any natural way to learn English? I know that if I keep reading grammar books, then I will only improve my knowledge in English, but not actively use them when I actually take with others, or have to be consciously be aware of the concepts while writing/communicating with other. Is there any other technique or routine that I can put into practice so that I not only learn English but also start applying them naturally. To rephrase myself, I want to built my grammar intuition quickly.