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.

And on top of everything ELSE,
I'm all gross from moving...
The Big Bang Theory Season 1, Episode 1

Why ELSE would the Lord of Light
have seen fit to mark her face?
Game of Thrones Season 4, Episode 2

What ELSE?
The Big Bang Theory Season 5, Episode 19

when someone ELSE
hunts down their breakfast for them.
Game of Thrones Season 3, Episode 6

I... I don't know
how ELSE to say this,
The Big Bang Theory Season 12, Episode 8