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.

Uh, she'll be in her CRATE,
it's not a big deal.
The Big Bang Theory Season 10, Episode 18

Oh, relax, she's in her CRATE.
She can't get out.
The Big Bang Theory Season 7, Episode 10

I cannot say I feel overly guilty
about leaving you in that fucking CRATE.
Game of Thrones Season 5, Episode 1

like sealing my daughter in a CRATE
so you can ship her away?
Game of Thrones Season 2, Episode 5

I sailed from King's Landing to Pentos
in a CRATE
Game of Thrones Season 5, Episode 6