The phrase "are certainly greater" is correct and usable in written English.
It can be used to emphasize that something is definitely larger or more significant than something else.
Example: "The challenges we face today are certainly greater than those of previous generations."
Alternatives: "are undoubtedly larger" or "are definitely more significant".
The chairman of a science department of a major university said last week that upon being told he had been nominated, he figured, "It is actually a fascinating opportunity, and I feel my chances of being asked are certainly greater than of winning the lottery".
There is not a single America, though together we are certainly greater than the sum of our individual parts.
While the capabilities of today's technologies are certainly greater, the goals of their use should be no different.
The challenges ahead are certainly great, even discombobulating.
"The extent of the plume is certainly greater but the concentration of the ash is becoming less," Moore said.
Gery P. Guy, a health economist who conducted the study for the CDC, said the true number of injuries is certainly greater.
Maybe some bowlers or runners have competed in eight decades, but the element of danger is certainly greater for someone sitting in a sulky surrounded by pounding hooves.
An estimated 1,600 were registered by child protection agencies in France during 2015, although the true figure is certainly greater because most unaccompanied minors avoid the authorities.
Most observers now agree that the risk of the world undergoing serious temperature rises by 2100 is certainly greater than one in a hundred.
Therefore, the gain in computational time for generating the ontologies will be certainly greater than the loss in its quality.
Therefore, for practical implementation, designers should roughly identify the minimum velocity that is not in the static friction domain and choose a value of (T_{h2}) that is certainly greater than the identified value.
