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.

There were days I wanted
to fill his pockets with CORN
The Big Bang Theory Season 9, Episode 14

It's just CORN starch and water.
The Big Bang Theory Season 2, Episode 3

A side of CORN
succotash.
The Big Bang Theory Season 5, Episode 4

Leonard can't process CORN.
The Big Bang Theory Season 1, Episode 1

You want my CORN?
The Big Bang Theory Season 3, Episode 14