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.

Listen, I got to level 25
and reached Purple Lotus Swamp, RIGHT?
The Big Bang Theory Season 2, Episode 3

That somewhere, RIGHT now,
Stephen Hawking is saying:
The Big Bang Theory Season 6, Episode 6

I imagine you're RIGHT.
Game of Thrones Season 3, Episode 8

All RIGHT, here we go.
The Big Bang Theory Season 11, Episode 16

He hasn't told her yet.
He's waiting for the RIGHT time.
The Big Bang Theory Season 4, Episode 23