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.

at BROODING over failing.
Game of Thrones Season 7, Episode 3

I'm not pouting, I'm BROODING.
The Big Bang Theory Season 7, Episode 18

You look a lot better BROODING
than I do.
Game of Thrones Season 7, Episode 3

A bit BROODING, perhaps.
Game of Thrones Season 6, Episode 5