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 take-home doesn't allow
for that whole Robin Hood thing.
Breaking Bad Season 5, Episode 10

Now, now. Evolutionary biologist
Robin Dunbar has identified gossip...
The Big Bang Theory Season 4, Episode 20

No need to bother Lord Robin.
Game of Thrones Season 1, Episode 6

I told Littlefinger
that I planned to wed her to Robin Arryn.
Game of Thrones Season 2, Episode 3

Hello, Robin.
Game of Thrones Season 4, Episode 7