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.

- Extra PEANUT sauce?
- No, but you can have mine.
The Big Bang Theory Season 8, Episode 7

Three weeks ago you bought
crunchy PEANUT butter...
The Big Bang Theory Season 6, Episode 23

eating that
PEANUT butter sandwich.
The Big Bang Theory Season 7, Episode 4

- What?
- I'm still upset about that PEANUT sauce.
The Big Bang Theory Season 8, Episode 7

Does it have PEANUT oil?
The Big Bang Theory Season 1, Episode 2