Bitcointalk is honestly overrated in terms of learning in general. It's great for having questions and discuss/debate certain news and topics, but if you're a beginner you're better off reading articles off the web.
So you want to say that web is better than this forum.
But can i get specific knowledge from web which i want?
These forum have so much traffic, so if i want to know about something then someone can give me the specific information. That's why i choose this forum.
Now i want to get more and more information how to improve my poor English writing /speaking
Sorry that is not what bitcointalk is about, it is not like a college where you can learn how to write and speak English, it is a discussion forum, and truly the language used for communicating in bitcointalk is English (except the local boards), and there are many native speakers of the language here, you can learn a little from how they write.
Needless to say that it isn't enough, and the better thing to do is to improve your English writing and speaking off the forum, there are websites you can take English courses for some months, you can also install Grammarly to assist you too, as well as many other tools out there to learn English properly. Bitcointalk is a bitcoin discussion forum, take it to be that.
Exactly i know that it's not like a school or College. I just want information that you give me in your last three line.