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.

♪ Send 'em to the kin
With the symbol on the PACKAGE ♪
Breaking Bad Season 4, Episode 2

...and eating it out of the PACKAGE
with my bare hands like an animal.
The Big Bang Theory Season 3, Episode 15

- One PACKAGE Philips head screws?
- Check.
The Big Bang Theory Season 1, Episode 2

that you saw me changing once
and my PACKAGE reminded you
The Big Bang Theory Season 7, Episode 17

I'm sending Louis a PACKAGE.
Breaking Bad Season 5, Episode 15