The phrase "able to regain a" is correct and usable in written English.
It can be used when discussing the capacity to recover or restore something, typically in contexts related to health, status, or possession.
Example: "After the treatment, she was finally able to regain a sense of normalcy in her life."
Alternatives: "capable of recovering a" or "able to restore a".
With that outcome, "he was able to regain a strong will," said Abe's younger brother, Nobuo Kishi, who now serves as Japan's vice foreign minister.
He played 10 games before picking up an injury in November and has not been able to regain a place in Mike Ford's side since then.
The match had fluctuated for much of the three days but the Windies were able to regain a share of the Wisden Trophy with relative ease as the England side tired.
And although they were able to regain a pulse on the 5-year-old, she remained in extremely critical condition at Children's Hospital Los Angeles.
A study at the University of Connecticut School of Medicine showed that, after three months, older men and women who engaged in balancing exercises were able to regain a level of stability equal to someone three to 10 years younger.
After receiving SNAP assistance, Long was able to regain a healthy body weight and Gina's growth went from the 25th percentile to the 75th, with her iron levels bouncing back to normal.
The researchers say that, in theory at least, a human with a damaged visual cortex might be able to regain sight through a device implanted in another part of the brain.
Only through working on "grown up" films with Martin Scorsese was he able to regain cred as a "respectable actor". So as someone who was once a shrieking teenage girl, and as someone who continues to read Young Adult and romance novels, I'm no stranger to being shamed for what I take pleasure from.
The parent would be able to regain custody of a child only if they were able to demonstrate that they had fundamentally changed.
However, Iraqi forces have not been able to regain ground despite a number of high profile attempted counter attacks, including heavy assaults on Saddam Hussein's hometown of Tikrit.
And artists will be able to regain the rights to a recording if their label has kept it in a vault and not made it available to the public.
