The phrase "already prevailed" is correct and usable in written English.
It can be used to indicate that something has been successful or has triumphed before a certain point in time.
Example: "Despite the challenges, the team has already prevailed in their efforts to complete the project ahead of schedule."
Alternatives: "has already succeeded" or "has already triumphed".
A spirit of shared responsibility already prevailed during the Washington summit last November.
The joke is that, even as Cameron complained to Allingham, her powers of persuasion had already prevailed.
Nehru had left India dependent on food aid from America, heightening the sense of national humiliation that already prevailed after India's military defeat by China in 1962.
With the clout built on his company's market share for both players and music, he has already prevailed against the labels in disputes over pricing.
Hence, the ratio of low- and high-temperature hydrothermal activity, ocean volume, ridge depth, and global geodynamics would have been similar than in the present day, meaning that a modern tectonic ocean system already prevailed at 760 Ma.
They are a slick and impressive side when permitted to revel but, even if acknowledging they had already prevailed at Stamford Bridge in the group's opening round of fixtures, no one could have predicted the in-roads they would make here.
It's an attitude that already prevails in some sections of non-League football.
Though Islam must be a main source of law and custom, the sharia should not be imposed, except in civil matters such as marriage and inheritance, where it already prevails.
You create an atmosphere of distrust". Of course, the official's insistence on speaking about anonymity only on condition of anonymity might suggest that such an atmosphere already prevails.
In most other neighborhoods, they say, market forces already prevail and rents will rise at slow, predictable rates, while landlords will continue to be burdened with the bureaucracy of rent regulations.
The graph inset shows a completely different early corona, in which HDL already prevails over the two other protein types.
