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.

"It’s LIVELY music, actually."
Money Heist Season 1, Episode 9

(LIVELY CHATTER AND LAUGHTER)
Game of Thrones Season 8, Episode 4

as a LIVELY give-and-take on
the merits of model train sizes.
The Big Bang Theory Season 5, Episode 3

After a LIVELY debate,
that proposal passed by a two-zero margin.
The Big Bang Theory Season 8, Episode 3