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.

We shall REQUIRE
3,000 helms and shields,
Game of Thrones Season 1, Episode 8

Jugglers and singers REQUIRE applause.
Game of Thrones Season 3, Episode 1

which will REQUIRE
a degree of influence, which...
Game of Thrones Season 3, Episode 4

Many important matters
REQUIRE a king's attention.
Game of Thrones Season 3, Episode 7

Going smaller would REQUIRE
weeks' worth of new computations.
The Big Bang Theory Season 10, Episode 15