In Expressions^x, Accents^x, Genders^x

Dear madam / sir, Being possessor of an exploitation right concerning an innovating technology of communication described below, I solicit your attention in order to know if any utilization would eventually interest you. Kind regards, (letters into brackets are readable with a...

If you want to talk like a native speaker then you have a long way to go. You can't skip over the steps. I suggest you master the basics first, before moving on to idioms and expressions. They're forums over here that can help you starting off( Vocabulary and Idioms , General English garmmar...