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.

But every time he tried to get
his NEST egg to his granddaughter,
Breaking Bad Season 5, Episode 15

I belong here with you, not down south
in that rats' NEST they call a capital.
Game of Thrones Season 1, Episode 1

A superior creature whose egg is placed
in the NEST of ordinary birds.
The Big Bang Theory Season 1, Episode 15

But if your red woman
told him to leap from the crow's NEST...
Game of Thrones Season 2, Episode 4

Nest of Snakes.
The Big Bang Theory Season 3, Episode 5