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.

Perhaps Highgarden has a high
TOLERANCE for unnatural behavior.
Game of Thrones Season 3, Episode 6

You'll find there's little TOLERANCE for
flesh peddlers in the new King's Landing.
Game of Thrones Season 5, Episode 6