The best way to learn proper English is to read news report, and watch news on TV. Watching TV shows is a great way to learn casual English, slang words, understand culture reference and humor. If you have already watched these shows then you may recall the words used in the following dialogs.

You've always struck me
as a very PRAGMATIC man.
Breaking Bad Season 3, Episode 13

Amy, that's the most PRAGMATIC thing
anyone has ever said to me.
The Big Bang Theory Season 4, Episode 5