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've PROVIDED substitutes
which will exercise your fine motor skills.
The Big Bang Theory Season 2, Episode 23

And this was before or after she drank
the poison you so kindly PROVIDED her?
Game of Thrones Season 7, Episode 5

That is,
PROVIDED we find this guy.
Breaking Bad Season 2, Episode 2

Yeah, PROVIDED he has already read
Infinite Crisis and 52...
The Big Bang Theory Season 2, Episode 20

The dark arts have
PROVIDED Lord Stannis with his armies
Game of Thrones Season 2, Episode 9