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.

If you have any questions,
here's the FAQ SHEET.
The Big Bang Theory Season 4, Episode 24

PVC comes here. Maybe a little
corrugated SHEET metal as a radiator here.
The Big Bang Theory Season 1, Episode 2

She is disheveled, and Raj
is dressed only in a SHEET.
The Big Bang Theory Season 5, Episode 1

...and Dr. Winkle just ripped
the sign-up SHEET off the wall.
The Big Bang Theory Season 2, Episode 3

It wasn't an official sign-up SHEET.
He printed it...
The Big Bang Theory Season 2, Episode 3