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.

from the top of an 800-foot PYRAMID.
Game of Thrones Season 6, Episode 1

We could pull back to the PYRAMID district,
Game of Thrones Season 5, Episode 5

She should have cut off the traitor's head
in the Great Pyramid and been done with it.
Game of Thrones Season 5, Episode 2

The dragons beneath the Great Pyramid
will be slaughtered.
Game of Thrones Season 6, Episode 9

They say a thousand slaves died
building the Great Pyramid of Meereen.
Game of Thrones Season 4, Episode 1