If you are a professional then you should have a very good understanding about English, without English you don’t look like a professional. Mostly, the Asian people have this problem allot and they have to face many problem so people who don’t have understanding about English, want to learn but the problem is, how to learn English?
Sometime people, who want to learn English join some coaching institute, take help from some books which help to learn English. The coaching or other institutes and books are helps to learn English but don’t provide a way in which you can be confident. To learn English in a confident way you need practice and environment.
If you want to speak English in a flow then you need to do practice continuously, you should create an environment where we can speak in English and you have to make it your habit. The news paper and the television news can be very helpful because if you read news paper and listen news then definitely you will get some profits, the match commentary also helps.
The English movie and songs is also one of the best way but for before using these all thing you should familiar with some grammatical portions.