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.

What if everyone starts demanding
their INDEPENDENCE?
Game of Thrones Season 6, Episode 9

Financial INDEPENDENCE through
entrepreneurial brilliance and innovation?
The Big Bang Theory Season 2, Episode 18