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.

No. Revenue most definitely
flowed through this company,
Breaking Bad Season 4, Episode 9

We're talking nearly a million dollars
of undocumented REVENUE.
Breaking Bad Season 2, Episode 11

- That's a whole new REVENUE stream...
- All right, already. We're good.
Breaking Bad Season 3, Episode 13

or didn't go back
and adjust the REVENUE entries.
Breaking Bad Season 2, Episode 11

l know a gal
at Tax and Revenue.
Breaking Bad Season 4, Episode 3