The phrase "a pledge about" is correct and usable in written English.
It can be used when referring to a commitment or promise regarding a specific topic or issue.
Example: "The organization made a pledge about environmental sustainability to reduce its carbon footprint."
Alternatives: "a commitment to" or "a promise regarding".
Later this year we will organise a one day event at Walworth academy where we will ask every student to make a pledge about protecting young girls and what they personally can do to support the eradication of FGM and forced marriage.
Ms Williams was speaking at the Lib Dem conference in Glasgow where the party leader Nick Clegg made a pledge about giving home rule to Wales.
Unless Senator Lee has specific constitutional arguments to make about these policy issues -- and it's hard to imagine any such arguments that would pass the laugh test -- such statements have no place in a pledge about the Constitution.
You begin to sense this when, herded on to a coach and supplied with a bracelet with a light that blinks in emergencies (one of the best touches), you are addressed by a guide who rapturously delivers a banal pledge about her faith in a future away from Old Earth.
As evidence of the secretary's fund-raising prowess, administration officials said she had secured $10 million from the Robert Wood Johnson Foundation and a pledge of about $500,000 from H&R Block, the tax preparation service.
(On Friday, former Prime Minister Silvio Berlusconi, campaigning to return to office, made a new promise: he said that if he won, he would personally refund an unpopular property tax paid by Italians in 2012. "I will take four billion euros of my own fortune and give it to Italians," he said on television, a pledge of about $5.3 billion).
That figure includes a pledge of about $7 million by the city toward the cost of police and transportation for the delegates, but officials say that plan, apparently based on what was needed in 1996 in Chicago, will now be more costly, given the geographic sprawl of Los Angeles.
Norway has announced a pledge of about $4.5 million, while Australia is adding $3.5 million in addition to the $32 million it gave in 2008.
The new partnership between the tech community and Sandy Hook Promise -- a nonprofit supporting families affected by the massacre and working to make the nation safer from such acts -- involves a pledge from about 30 venture capitalists and angel investors to support companies developing technology that can help curb gun violence.
Risking becoming a hostage to fortune, she makes a blunt pledge about peak season, declaring that easyJet "could not do anything more" to assure punctual holiday flights: "If something happens in the summer, it will be because of external events we can't control".
As President-elect, Ronald Reagan made a similar pledge about abandoning the terms of the Algiers Accord, in 1981, to end the takeover of the U.S. Embassy and free fifty-two American diplomats.
