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.

Raj, we're not getting TV's Blossom
to join our Physics Bowl team.
The Big Bang Theory Season 1, Episode 13

Look, we made this Penny Blossom
in under three minutes.
The Big Bang Theory Season 2, Episode 18

You know who is apparently very smart
is the girl who played TV's Blossom.
The Big Bang Theory Season 1, Episode 13

And how much profit do you make
per Penny Blossom?
The Big Bang Theory Season 2, Episode 18