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.

♪ Six times ten to the EIGHTH
atoms of radium ♪
The Big Bang Theory Season 12, Episode 23

They'll need an EIGHTH hell to fit him in.
Game of Thrones Season 1, Episode 4

♪ Three times ten
to the EIGHTH atoms ♪
The Big Bang Theory Season 12, Episode 23

♪ Six times ten
to the EIGHTH atoms ♪
The Big Bang Theory Season 12, Episode 23

- What the hell is EIGHTH base?
- Seventh base with shirt off.
The Big Bang Theory Season 3, Episode 12