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 been invited to
CONSULT on an experiment
The Big Bang Theory Season 7, Episode 5

-I have to CONSULT it.
-"You have one minute."
Money Heist Season 1, Episode 7

to CONSULT, and I have
an interview tomorrow.
The Big Bang Theory Season 11, Episode 10