The phrase "add enormously" is correct and usable in written English.
It can be used when describing a significant increase or enhancement in quantity, quality, or impact.
Example: "The new marketing strategy is expected to add enormously to our overall sales figures this quarter."
Alternatives: "greatly increase" or "significantly enhance".
Their quirky absorptions in, say, physics, baseball stats or investment strategies add enormously to human advancement.
Ms. Rasco and Ms. Washington said that applying for grants from individual states would add enormously to their administrative costs.
Berger said he hoped to retrieve DNA from the remains, which could add enormously to scientists' understanding.
A recent report for the European Commission on cross-border clearing and settlement, by the Giovannini group, concludes that these barriers add enormously to transaction costs for investors.
Geography constrains California cities, but as the Chicago example demonstrates small areas with tall buildings can add enormously to housing and office supply if zoning codes allow.
"It would add enormously to our capacity and make us a far more robust competitor than we would otherwise be," Mr. Dolan said.
This procedure adds enormously to the diagnostic information that can be provided by conventional X-rays.
And the entire system adds enormously to the cost of construction.
The appropriation of the possessions of the church thus added enormously to the wealth of the state.
Numerical simulation of an ever-increasing range of geophysical phenomena is adding enormously to our understanding of complex processes in the Earth system.
The cost of this insurance is not included in the interest yet it adds enormously to the cost - typically adding £7,000 on a £10,000 loan over 25 years.
