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.

My brother instructs us
to STAGE a tournament
Game of Thrones Season 1, Episode 3

I think
it's only the fifth STAGE
The Big Bang Theory Season 12, Episode 24

"The Big Bang Theory Stage."
The Big Bang Theory Season 12, Episode 24

Then we will move on
to STAGE two:
The Big Bang Theory Season 11, Episode 11

...as to say that I represent
a distinct new STAGE in humankind.
The Big Bang Theory Season 2, Episode 5