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.

Are you able to have sex with men without
developing an emotional ATTACHMENT?
The Big Bang Theory Season 2, Episode 21

applaud Raj'’s decision to
forgo emotional ATTACHMENT
The Big Bang Theory Season 12, Episode 3

Now that you're unattached, maybe
we can revisit our previous ATTACHMENT.
The Big Bang Theory Season 2, Episode 2

And I told her you have
an unhealthy ATTACHMENT to your mother.
The Big Bang Theory Season 3, Episode 5

she's the exact opposite of
your first romantic ATTACHMENT:
The Big Bang Theory Season 5, Episode 13