I was always think about a question.what if we be able to give  our respond in real time while converstion.we can called as fluent.because

the speed of reaction can be once that used to test how you english ability.

but it take many time on it. there are a  reason.

thinking about it . when we speak english, we are very easy to take what we had masted about the english to comunicate. this soft of thing has took us many time for traning. the more we use it, the high the chance we will easy to use them next time. those intersted in you, it will became you thing early. so that people want to take to us. they need to on the same level with us. its what we dicuss had related or not is hard to follow.