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 look like a train CONDUCTOR.
The Big Bang Theory Season 5, Episode 12

the CONDUCTOR said if I come
back to the engine room,
The Big Bang Theory Season 7, Episode 15

the banjo-playing CONDUCTOR
The Big Bang Theory Season 7, Episode 15

The CONDUCTOR and I have
the same pocket watch.
The Big Bang Theory Season 7, Episode 15

The CONDUCTOR said
as soon as he gets off work,
The Big Bang Theory Season 7, Episode 15