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.

In Hinduism,
cattle are thought to be like God.
The Big Bang Theory Season 3, Episode 4

Third, you are never allowed to lecture me
on Hinduism or my Indian culture.
The Big Bang Theory Season 3, Episode 4

And you're wrong
about Hinduism and cows.
The Big Bang Theory Season 3, Episode 4