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.

My MOST recent paper
The Big Bang Theory Season 5, Episode 12

She should be kind, patient,
and MOST important,
The Big Bang Theory Season 9, Episode 8

one of the MOST recognizable faces
in Westeros is not...
Game of Thrones Season 5, Episode 4

...so you might have to do
MOST of the heavy lifting.
The Big Bang Theory Season 6, Episode 4

Most of us aren't princes.
Game of Thrones Season 4, Episode 6