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.

Oh, goodie!
Put him on SPEAKERPHONE!
The Big Bang Theory Season 7, Episode 1

Ma, I'm putting you on SPEAKERPHONE
with Raj's parents.
The Big Bang Theory Season 2, Episode 23

Bernadette, I'm putting you
on SPEAKERPHONE.
The Big Bang Theory Season 4, Episode 22