The phrase "allegedly contributed to" is correct and usable in written English.
It can be used when discussing claims or accusations regarding someone's involvement in an event or action without asserting it as a fact.
Example: "The report stated that the company allegedly contributed to environmental damage through its waste disposal practices."
Alternatives: "reportedly played a role in" or "supposedly aided in".
The fugitive drug lord Joaquín "El Chapo" Guzmán allegedly contributed to his capture by attempting to make a film about his rags-to-riches rise to the top of one of the world's most extensive criminal enterprises, it has emerged.
Klein's representation of the Beatles dramatically increased the band's profits but allegedly contributed to their breakup in 1970, and in 1973 John Lennon, George Harrison, and Ringo Starr sued him for misrepresentation (he did not settle with Lennon until 1977).
Before her death, she had also made arrangements that force those she blames for her death including fellow students and school staff members to listen to the tapes to hear how their actions hurt her and allegedly contributed to her suicide.
The designation was on the books when the defendants allegedly contributed to the group.
It called for the removal of Chamberlain and other ministers who had allegedly contributed to the British disasters of the early part of the war.
See articleParmalat is laying another claim against a large financial institution for allegedly contributing to its collapse in 2003.
"Shafer simply handed out prescriptions in exchange for cash, even pre-signing scripts for patient files," said the lawsuit against her for allegedly contributing to the death of a patient.
Roundup contains glyphosate, a type of herbicide that allegedly contributes to a host of health problems.
Before she passed away, Elizabeth Edwards was supposedly looking into using the alienation of affection tort to sue former aide Andrew Young for allegedly contributing to the demise of her marriage to John Edwards, who had a child with Rielle Hunter.
(McCarthy's performance allegedly contributed heavily to Trump's growing distaste for the then press secretary, complaining about the fact that he was portrayed by a woman).
Besides voicing concerns over Western factories in the region, human rights critics have called out Internet giants such as Google for allegedly contributing indirectly to Beijing's efforts to monitor Uighurs.
