The phrase "arguably contribute" is correct and usable in written English.
It can be used when discussing the potential impact or influence of something, suggesting that there is a reasonable argument for its contribution.
Example: "The new policy changes arguably contribute to a more sustainable environment."
Alternatives: "possibly add" or "potentially play a role".
But the group could arguably contribute to higher prices if it chose to pare its production.
Creative learning opportunities through holiday activities, including actual holidays, are unaffordable and arguably contribute to the achievement gaps between poorer and more affluent children, according to US research.
The Agriculture Department spends more than $100 billion on nutrition assistance and about $1 billion on food safety, both of which arguably contribute to public health.
Fortunately, the development of sophisticated computerized legal-information services and the Internet have greatly facilitated access to this literature, though they arguably contribute to what has been described as an excess of data.
It does not give us an explanatory account of the origins of the state, although it could arguably contribute to the explanation of the maintenance of a state once it exists.
These benefits arguably contribute to America's rising crisis in income and wealth inequality.
This shift has arguably contributed to more-partisan elections and political discourse in the U.S.
"We believe that in only one instance over the past seven years has the program arguably contributed to the identification of an unknown terrorism suspect.
Hughes admitted there was "a little bit of apprehension" in Southampton's play, yet his tactics and substitutions arguably contributed to that situation.
It's a shift that, since 2006, has profoundly affected elections and arguably contributed more than any other factor — save the economy — to Barack Obama's 2008 victory.
But it is his work in the Monty Python television series, which was brought to the stage in London in 2014, that arguably contributed most to his fame.
