The phrase "a bit more concerned" is correct and usable in written English.
It can be used when expressing a slight increase in worry or anxiety about a particular situation or issue.
Example: "After hearing the news, I became a bit more concerned about the project's timeline."
Alternatives: "somewhat more worried" or "a little more anxious".
Steven Tyler famously attempted to pass a law adjusting the standards in Hawaii to provide "legal remedy for celebrities who are photographed by paparazzi while involved in 'personal or familial activity.'" Tyler was a bit more concerned that photogs were interfering with his vacation spot, but addressed the safety concerns that exist outside of paradise.
So maybe it should be a bit more concerned.
She is formidable, mature, not bothered about fame, whereas I'm a bit more concerned".
Understandably, when an exit date is set they become a bit less concerned with the company's future and a bit more concerned with their own.
Jan Hatzius, an economist at Goldman Sachs, said that was "not a surprise but nonetheless an indication that the committee is a bit more concerned than they were" about inflationary pressures.
In the context of central banking, Yellen is often identified as a "dove," which means that she is generally a bit more concerned about lowering unemployment than about the risks of inflation.
"I think that the Chinese government may not be overly concerned about Google and perhaps a little bit more concerned about bolstering Baidu," he says.
I hope I'm wrong, but I'm a little bit more concerned about him this time because the shoulder is a big part of his game with his swinging volley and serves.
"I'm a little bit more concerned now than I was," Scott said.
Maybe when July 1 hits, maybe I'll be a little bit more concerned then".
'Where you might be a little bit more concerned is how these guys are schooled in life outside cricket.
