The phrase "about cooperating with" is correct and usable in written English.
It can be used when discussing the topic or subject of collaboration or partnership with someone or a group.
Example: "The meeting will focus on discussing the challenges about cooperating with our international partners."
Alternatives: "regarding collaboration with" or "concerning working with".
But she was also very worried about cooperating with them.
Some NATO allies remain anxious about cooperating with Russia on missile defense.
But the report said little about cooperating with the wider tristate region.
Jackie had never tried to contact him about cooperating with Rolling Stone.
That was followed by a decree issued by the Serbian government about cooperating with the tribunal.
Indeed, he has made no bones in the past about cooperating with dictators, whether Syria's Assad or Egypt's Mubarak.
Longtime Donald Trump adviser Roger Stone said on Sunday he would have to consult with his attorneys about potentially cooperating with special counsel Robert Mueller, who is investigating links between the Trump campaign and Russian operatives.
The next day, the newspapers run stories about Helen cooperating with police, which infuriates Hal.
An email sent to Hillary Clinton during her tenure as secretary of state shows that government officials tried to pressure the Washington Post into suppressing details about a WikiLeaks cable that revealed information about the US cooperating with Turkey to share intelligence about Kurdish militants.
Wednesday's batch also included an email sent to Clinton which indicated that government officials tried to pressure the Washington Post into suppressing details about a WikiLeaks cable that revealed information about the US cooperating with Turkey to share intelligence about Kurdish militants.
Trump has spoken favorably about cooperating more with Russia in Syria on counterterrorism operations, although there is little indication that will soon become a reality.
