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.

the conductor played his BANJO
for me.
The Big Bang Theory Season 7, Episode 15

nine-fingered BANJO players
makes me dog, but all right.
The Big Bang Theory Season 7, Episode 15

and play his BANJO for us.
The Big Bang Theory Season 7, Episode 15