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.

He just takes an interest
because he loved my MOTHER.
Game of Thrones Season 3, Episode 2

If it weren't for me,
you'd have a MOTHER.
Game of Thrones Season 7, Episode 7

Just like your MOTHER.
Vikings Season 1, Episode 6

That is my MOTHER...
Wife. My wife. I said my wife.
The Big Bang Theory Season 8, Episode 1

And not only am I Leonard's MOTHER,
The Big Bang Theory Season 9, Episode 12