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.

Raj found all these
CHILDBIRTH videos online.
The Big Bang Theory Season 9, Episode 20

Childbirth is a
natural, beautiful...
The Big Bang Theory Season 7, Episode 11

Childbirth, looming coitus?
The Big Bang Theory Season 10, Episode 11

Like how women often forget
the pain of CHILDBIRTH.
The Big Bang Theory Season 7, Episode 16