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.

But if successful, I will map
and REPRODUCE your thought processes...
The Big Bang Theory Season 4, Episode 3

...that seek to REPRODUCE
using humans as their host.
The Big Bang Theory Season 4, Episode 20

Over the years, we've formulated many
theories about how he might REPRODUCE.
The Big Bang Theory Season 2, Episode 6

I'm quite aware of the way
humans usually REPRODUCE...
The Big Bang Theory Season 4, Episode 1