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.

And whiter too, because I wasn't
in direct SUNLIGHT for six weeks.
The Big Bang Theory Season 8, Episode 1

They see the SUNLIGHT,
Money Heist Season 1, Episode 13

...air-flow patterns and dispersion
of SUNLIGHT to make an informed choice.
The Big Bang Theory Season 1, Episode 17

and summers of black SUNLIGHT.
Vikings Season 1, Episode 6