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.

...baffled by MODERN technology?
The Big Bang Theory Season 8, Episode 22

What's wrong with me, I'm not supposed
to like museums or MODERN painters?
Money Heist Season 1, Episode 6

...of multi-loop N=8 supergravity
using MODERN twistor theory.
The Big Bang Theory Season 2, Episode 5

JESSE:
It's gonna be pretty much sparse.
Very Asiany, MODERN stuff.
Breaking Bad Season 2, Episode 5

Relatively MODERN.
The Big Bang Theory Season 2, Episode 2