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.

Virtually impossible to CONFUSE
Cheetos with Fritos, seems to me.
Breaking Bad Season 4, Episode 3

Why would you want to
CONFUSE and disappoint others?
The Big Bang Theory Season 10, Episode 5

You'd risk that just to CONFUSE them?
Game of Thrones Season 4, Episode 4

It's easy to CONFUSE
what is with what ought to be,
Game of Thrones Season 5, Episode 9

I don't know how that sentence
could possibly CONFUSE you...
The Big Bang Theory Season 2, Episode 23