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.

by working the GRAVEYARD shift
The Big Bang Theory Season 5, Episode 13

You'll be ruling
over a GRAVEYARD
Game of Thrones Season 7, Episode 3

No, because she wants to have sex
with me in a GRAVEYARD.
The Big Bang Theory Season 8, Episode 24

Go check the GRAVEYARD.
Westworld Season 2, Episode 4

And one day, you walked through a GRAVEYARD
and realized it was all for nothing,
Game of Thrones Season 6, Episode 4