Concerned

Are you concerned with politics?

The countries concerned settled the dispute by peaceful means.

Shareholders were concerned about the company's swift expansion overseas.

What are you concerned about?

As far as English is concerned, nobody can beat me.

As far as English is concerned, she is second to none in her class.

The use of space must be limited to non-military purposes, as far as Japan's involvement is concerned.

We are very much concerned about the future of this country.

As far as I'm concerned, I will not approve of the plan.

I am much concerned about your health.