The phrase "already manifested" is correct and usable in written English.
It can be used to describe something that has come into existence or become apparent at an earlier time than expected.
Example: "The changes we discussed have already manifested in the team's performance metrics."
Alternatives: "already appeared" or "already emerged".
23 Thirdly, there is ample evidence of vascular injury before haemolytic uraemic syndrome ensues, 24 and the microvascular damage is possibly already manifested before the clinical manifestation of the disease.
These risks have already manifested themselves all over the US.
Atomised rage has already manifested itself with a man shooting two carabinieri outside the prime minister's residence during the swearing in.
The entertainment industry's political influence has already manifested itself in such laws as the Digital Millennium Copyright Act of 1998, which made it easier to go after digital pirates.
Yet there is a clear danger, already manifested in the unthinking wish in Brussels to make Jean-Claude Juncker the new European commission president, that large parts of the old European parliamentary class remain in denial.
The contrasting philosophies, coupled with the familiarity that comes from having played eighteen games against each other during the regular season, has already manifested itself in trash-talk from Milwaukee's normally mild-mannered pitcher Zack Greinke and a first-inning warning in Game One after Prince Fielder was hit by a pitch.
And that impatience is growing, and it's already manifesting itself in capitals around the world".
All the earliest fossils attributed to Fagales already manifest these changes, and so it is impossible to know exactly how the changes took place.
Climate change, Mr. Obama often says, is the greatest long-term threat facing the world, as well as a danger already manifesting itself as droughts, storms, heat waves and flooding.
Away from the furtive denial and impotent rage, though, Wallander's changing mental state – a moment of bewilderment, a vanishing thought – was marked by the smallest of adjustments, a reminder that the TV detective's condition already manifests itself in puzzlement, rumination and absent-mindedness.
Starr, who is best remembered as the independent counsel in the Monica Lewinsky scandal, said it was too soon to tell if Griffin's Heisman win had led to an increase in endowments and enrollment, but added, "I am getting anecdotal indications that people's levels of happiness is already manifesting itself in gifts that might not otherwise have been made".
