"behaving in a" is a correct and usable part of a sentence in written English.
You can use it when you want to describe how someone is acting, such as "The child was behaving in a reckless manner."
Instead, we seem to see the races behaving in a more localized fashion.
Gorbachev is behaving in a way that is the exact opposite of Khrushchev's testing pattern.
So they are behaving in a very demanding way, which smells to some like nationalism.
It was a crazy time and I felt like I was behaving in a crazy way.
Maybe I should have worried more about not behaving in a way that might break it.
The government in Kiev said Moscow was behaving in a manner reminiscent of Nazi Germany.
However, property owners and savers are behaving in a way that undermines the UK's economic progress.
They were gangsta rappers, and consequently found themselves behaving in a gangster-like manner.
And I also know that you think you're actually behaving in a very controlled fashion.
If not themselves, it's someone close to them who is behaving in a vaguely unhuman way.
"We're behaving in a virulent manner; we're cannibalising our own home.
