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.

This is a CHAIR
worthy of the name.
The Big Bang Theory Season 5, Episode 2

Not when you're sitting in that CHAIR.
Game of Thrones Season 6, Episode 6

They will avenge their father while
you sit here in your CHAIR doing nothing.
Game of Thrones Season 5, Episode 2

You need to remove that
CHAIR from the building.
The Big Bang Theory Season 5, Episode 2

I just have one question
about the CHAIR.
The Big Bang Theory Season 5, Episode 2