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.

Not even James Bond could weld
the ANTECHAMBER in such a short time.
Money Heist Season 3, Episode 3

An interconnecting ANTECHAMBER.
Money Heist Season 3, Episode 3