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.

On, they'll BLOODY try.
Game of Thrones Season 5, Episode 10

There's no need to BLOODY yourself.
Game of Thrones Season 1, Episode 5

I know
the whole BLOODY country thinks I'm guilty,
Game of Thrones Season 4, Episode 4

May as well be at a BLOODY wedding.
Game of Thrones Season 8, Episode 2

we got us a nice, big, juicy,
BLOODY fingerprint
Breaking Bad Season 2, Episode 2