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.

I had to SMUGGLE myself into my own lands,
thanks to the Greyjoys.
Game of Thrones Season 4, Episode 2

...of the money you attract to SMUGGLE
your grandfather out of Pyongyang.
The Big Bang Theory Season 1, Episode 12

that in the prison it’s very easy
to SMUGGLE anything in.
Money Heist Season 1, Episode 8

to SMUGGLE us back down,
and they're gonna be here
by sunset
Breaking Bad Season 2, Episode 2

We SMUGGLE Slurpees, which are
essentially Icees, in under our coats...
The Big Bang Theory Season 2, Episode 14