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.

You're wasting your time.
I'm buying the car WASH, end of story.
Breaking Bad Season 3, Episode 13

Thank you, and please give that
to your car WASH professional.
Breaking Bad Season 5, Episode 13

They told me not to talk about
that woman at the car WASH,
Breaking Bad Season 5, Episode 16

Did you get
the car WASH keys?
Breaking Bad Season 4, Episode 6

l've seen some real 'lslamic' comings
and goings over there at the car WASH.
Breaking Bad Season 4, Episode 3