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.

safety thermocouple
with the PILOT burner.
Breaking Bad Season 2, Episode 10

Pilot in.
Breaking Bad Season 2, Episode 10

And I can be a bush PILOT.
Breaking Bad Season 2, Episode 12

Wonderful, and the PILOT did
such a good job I gave him a butterscotch.
The Big Bang Theory Season 9, Episode 14