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.

My major focus at the moment
is keeping my claustrophobia at BAY.
The Big Bang Theory Season 8, Episode 6

She crucified hundreds of
noblemen in Slaver's Bay.
Game of Thrones Season 7, Episode 2

He's not a lying man.
He says the Iron Fleet's in Slaver's Bay.
Game of Thrones Season 6, Episode 7

Open the landing BAY doors,
shuttlecraft approaching.
The Big Bang Theory Season 4, Episode 24

Got in a boat and rowed
past the Bay of Seals.
Game of Thrones Season 3, Episode 9