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 the world's largest
COLLECTION of diabetic candy.
The Big Bang Theory Season 5, Episode 16

with the Toys for Tots
COLLECTION box.
The Big Bang Theory Season 5, Episode 17

- I need it for my Robin COLLECTION.
- Rock Paper Scissors Lizard Spock?
The Big Bang Theory Season 2, Episode 20

He offered me a fair price
for the whole COLLECTION.
The Big Bang Theory Season 1, Episode 14

Can I interest you in a topical steroid
from my lotion and unguent COLLECTION?
The Big Bang Theory Season 4, Episode 6