how can speak excellent english?

Don't translate When you want to create an English sentence, do not translate the words from your Mother tongue. The order of words is probably completely different and you will be both slow and incorrect by doing this. Instead, learn phrases and sentences so you don't have to think about the words you are saying. It should be automatic.

Every language has its speciality, so does the English language. Do practice its Idioms and phrases and make use in your conversations meaningfully.