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.

Now I'm thinking about the origin
of the PHRASE "train of thought."
The Big Bang Theory Season 4, Episode 20

and the only time I use
the PHRASE "my bitch,"
The Big Bang Theory Season 7, Episode 6

I assumed, as in a number of languages,
that the gesture was part of the PHRASE.
The Big Bang Theory Season 1, Episode 17

Have you ever heard the PHRASE...
Game of Thrones Season 1, Episode 6

Did that conversation include the PHRASE,
"Your genitals are a joy to behold"?
The Big Bang Theory Season 10, Episode 1