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.

They consider THEMSELVES our equals.
Game of Thrones Season 1, Episode 3

and you watch them
watch THEMSELVES.
The Big Bang Theory Season 12, Episode 17

We can defend those
who can't defend THEMSELVES.
Game of Thrones Season 7, Episode 6

to the gods THEMSELVES.
Game of Thrones Season 6, Episode 7

Anybody wanna introduce
THEMSELVES?
Breaking Bad Season 3, Episode 9