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.

Thank you for your RENDITION.
Game of Thrones Season 1, Episode 10

with a haunting RENDITION of Brenda Lee's
I'm Sorry played on the pan flute.
The Big Bang Theory Season 9, Episode 13