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.

Every customer who
walked into that BUTCHER shop...
The Big Bang Theory Season 3, Episode 13

and BUTCHER your children
without a second thought.
Game of Thrones Season 7, Episode 2

has been overthrown
by a BUTCHER named Cleon
Game of Thrones Season 4, Episode 5

I'll have the boys
BUTCHER a goat for supper.
Game of Thrones Season 1, Episode 3

- Who helped him?
- Ganes, the BUTCHER,
Game of Thrones Season 2, Episode 4