The phrase "are unable to proceed" is correct and usable in written English.
You can use it when indicating that someone or something cannot continue with a task or process due to certain limitations or obstacles.
Example: "Due to the lack of necessary resources, we are unable to proceed with the project as planned."
Alternatives: "cannot move forward" or "are not able to continue."
Acyl-CoA substrates are converted into enoyl-CoA by the acyl-CoA dehydrogenase enzyme FadE (Campbell and Cronan 2002), and are unable to proceed further through β-oxidation due to the absence of FadB and FadJ.
Dave Lewis, Tesco's chief executive officer, said: "It is with a heavy heart that I am today announcing that we are unable to proceed with eight planned new store developments across Scotland.
Tesco's chief executive officer Dave Lewis said: "It is with a heavy heart that I am today announcing that we are unable to proceed with our planned new store developments in Armagh and Carryduff.
Once their passage is hindered by the Himalayas, they are unable to proceed further, and they release significant precipitation over the southern Himalayas.
Her family said the 12-year-old was too traumatized, "so we are unable to proceed at this time," said Jane Robison, a spokeswoman for the district attorney's office.
The case against Springer was dropped after the alleged victim's family told prosecutors the girl was too traumatized to testify at trial, "so we are unable to proceed at this time," said Jane Robison, a spokeswoman for the L.A. County district attorney's office.
On Sunday the prime minister, Nawaz Sharif, said during a visit to London that the government would be "unable to proceed further" with talks following the Peshawar attack.
In September he reportedly received emergency treatment in New York City, where he was unable to proceed with an address to the United Nations.
The parliamentary commissioner for standards, Elizabeth Filkin, was unable to proceed with several charges against Mr Vaz because of his failure to co-operate.
