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.

...at the time of your BIRTH
somehow affects your personality.
The Big Bang Theory Season 1, Episode 1

a woman of noble BIRTH
is always called a lady.
Game of Thrones Season 2, Episode 6

Why are you so sure I'm of noble BIRTH?
Game of Thrones Season 2, Episode 6

That sow right
there gave BIRTH to a litter of eight.
Game of Thrones Season 3, Episode 3

Do you remember the name
you were given at BIRTH?
Game of Thrones Season 4, Episode 8