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'm not exactly sure
who that was YESTERDAY,
Breaking Bad Season 2, Episode 10

showing you around
his lab YESTERDAY.
The Big Bang Theory Season 12, Episode 22

Did she get a laugh
at a meeting YESTERDAY
The Big Bang Theory Season 11, Episode 8

For the rest of things in life
it’s as if he had been born YESTERDAY.
Money Heist Season 1, Episode 1

And I have fewer enemies today
than I did YESTERDAY.
Game of Thrones Season 7, Episode 5