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 tell her
we were CUTTING research funding...
The Big Bang Theory Season 8, Episode 1

and reported somebody
for CUTTING the line.
The Big Bang Theory Season 10, Episode 11

Who here takes issue
with this person CUTTING the line?
The Big Bang Theory Season 9, Episode 23

Not without CUTTING
his head open, no.
The Big Bang Theory Season 5, Episode 3

Okay, I'm CUTTING.
The Big Bang Theory Season 3, Episode 16