Although the headline kind of says it all, I believe a little bit of context will be good. I live in a non-English speaking country, but I have always been keen in writing in English mostly to reach a wider audience. My knowledge of English mostly came from TV series, movies, TV shows (reality shows, like it or not), cartoons, and news websites. Over the years, I have developed a strong sense of what's correct and what's not when it comes to English. I'm not bragging, but in my school, high school, and college, I've always managed to get A+ (80+ marks) in English subject without doing much real study. Only now I know how big of a mistake that was. Lately I've been realizing that my basics aren't good. I can correct most mistakes in a sentence, but I don't know why they are mistakes. Like I know "more beautiful" is correct and "beautifuler" is incorrect. But if you were to ask me why "beautifuler" is incorrect when we say "easier, faster", I wouldn't know the answer. You might be surprised that I don't even know the classifications of noun, the definition of proverb, clause, etc. If you were to ask me whether this sentence is simple, complex, or compound, I wouldn't know. I do have study material from the school, but they kind of start at nowhere. So I'm looking for a well-structured resources that will help me make my basic grammar in English stronger. Any idea, tips, resources that you can give me to accomplish that will be much appreciated.