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.

and his SHEEP out of the bank.
Money Heist Season 3, Episode 3

Good enough for killing SHEEP,
if the SHEEP don't fight back.
Game of Thrones Season 1, Episode 8

Now, I have SHEEP; I need wood.
The Big Bang Theory Season 5, Episode 13

Who has wood for my SHEEP?
The Big Bang Theory Season 5, Episode 13

Who's Mike? Why does he
get a digital SHEEP and not you?
The Big Bang Theory Season 2, Episode 9