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.

Anyhow, I've been thinking about it a lot,
and I totally see why Lucy did what she did.
The Big Bang Theory Season 6, Episode 24

Anyhow, on a scale of one to five...
The Big Bang Theory Season 2, Episode 3

Anyhow,
the thing I wanted to talk to about is...
The Big Bang Theory Season 1, Episode 17