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.

for Joe Six-Pack and all
his quantum PHYSICS concerns?
The Big Bang Theory Season 7, Episode 20

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

She thought if I failed at theoretical PHYSICS
that I should have a trade to fall back on.
The Big Bang Theory Season 2, Episode 10

Would you like to play a PHYSICS car game
I invented called I Can't Spy?
The Big Bang Theory Season 8, Episode 19

All right, well, let me see if I can
explain your situation using PHYSICS.
The Big Bang Theory Season 4, Episode 5