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.

Illyrio said they are SEWING dragon banners
and praying for his return.
Game of Thrones Season 1, Episode 4

You did well SEWING up this mess.
Game of Thrones Season 3, Episode 7

Sansa can keep her SEWING needles.
Game of Thrones Season 1, Episode 2

Aye, ser, and SEWING which king?
Game of Thrones Season 3, Episode 1

or for SEWING the King's son in a pie.
Game of Thrones Season 3, Episode 10