You know, I've noticed that the rules of English are quite similar to "the rules of love".

there are a lot of rules to english,try finding a good text book,or better still a comitted teacher.

I think rules are not the most important part in learning languages,cause when you speak it comes out naturelly ,just like when you speak your mother tongue you may actually don't care what rules they are ,but you can express without so much thinking.

find a good grammar book. i recommend Understanding and Using English Grammar by Betty Schrampfer Azar.

There are only three rules: 1) listen, and speak what you hear 2) read, and write what you have read 3) adapt the language to yourself and personalize it.