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.

I suppose all of our ancestors
came from somewhere else ORIGINALLY.
Game of Thrones Season 4, Episode 8

Originally
we were painted nude.
The Big Bang Theory Season 5, Episode 17

...were ORIGINALLY evil terminators
created by Skynet...
The Big Bang Theory Season 1, Episode 10

...I'm ORIGINALLY from "Denton, Texas,"
but I was a Navy brat.
The Big Bang Theory Season 1, Episode 10

From there myself ORIGINALLY.
Flea Bottom born and bred.
Game of Thrones Season 4, Episode 7