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.

WARNER BROS. TELEVISION
The Big Bang Theory Season 12, Episode 20

If I've learned anything
from British TELEVISION shows on PBS...
The Big Bang Theory Season 6, Episode 3

"putting a terrifying,
giant yellow bird on TELEVISION
The Big Bang Theory Season 12, Episode 4

are making the switch
to TELEVISION.
The Big Bang Theory Season 7, Episode 10

WARNER BROS. TELEVISION
The Big Bang Theory Season 12, Episode 4