The phrase "about how former" is not correct in written English as it is incomplete and lacks context.
It can be used when discussing a topic related to past individuals or events, but it needs to be part of a complete sentence.
Example: "The article discusses about how former leaders influenced modern policies."
Alternatives: "regarding past" or "concerning previous".
Avery was only 23 games into a four-year, $15.5 million deal when N.H.L. Commissioner Gary Bettman suspended him for a crude remark about how former girlfriends were dating other hockey players.
Talk story about how former President Jimmy Carter thinks he might have been able to save Elvis Presley's life..
The New Yorker, August 18 , 1997P. 25 Talk story about how former President Jimmy Carter thinks he might have been able to save Elvis Presley's life...
There were fresh allegations on Friday about how former Liberal MP Cyril Smith, who died in 2010, was able to abuse boys for decades.
Armin Rosen writes in The Atlantic about how former N.B.A. star Dikembe Mutombo's efforts to buy gold in Kenya went wrong: Mutombo may be a renowned basketball player and humanitarian.
As the commander of the United States Special Operations Command, I am becoming increasingly concerned about how former members of the Special Operations community are using their "celebrity" status to advance their personal or professional agendas.
Campaign finance watchdogs say Mr. Torricelli's spending raises questions about federal regulations dictating how former politicians can spend unused campaign contributions.
She referred to a former Democratic ally as "Gunny," a jab based on a trumped-up Republican attack about how the former ally had described his military record.
Culverhouse read about the controversy, heard about how her former lineman Tom McHale had died at 45 with brain damage associated with boxers, and began calling her former players.
Her husband, Ron Weber, 75, said he responded by talking about how his former wife had also been assaulted.
Some of the breathless praise about how this former student of the Depression saved the world from a repeat is overdone.
