The phrase "although there are certainly" is correct and usable in written English.
It can be used to introduce a contrasting idea or to acknowledge a point while suggesting a different perspective.
Example: "Although there are certainly challenges in the project, I believe we can achieve our goals with teamwork."
Alternatives: "even though there are definitely" or "while there are indeed".
In the United States, although there are certainly healthcare challenges, we've gotten to a point where we usually aren't talking about health in terms of child mortality.
These are lessons that go beyond having to do some of the less glamorous Army tasks, like cleaning latrines or burning and stirring human excrement (although there are certainly important lessons to be learned there).
To the Editor: Although there are certainly practical problems posed by applying our venerable Constitution to modern American life, these are minuscule compared with the monstrosity that would likely emerge from a new Constitutional Convention, circa 2012.
Having to come back from a 3-0 definithis this game made the victory even sweeter, writes Phil Sheridan in The Philadelphia Inquirer, although there are certainly many more twists and turns ahead.
Although there are certainly big games that do well on both PC and console, there are often profound and complex differences between titles build specifically for console, and titles made only on PC.
But it can't simply be sent up or laughed at, like the crooked shenanigans of his previous comedy, American Hustle, although there are certainly echoes, as Joy fumes at the way she gets let down and ripped off.
Although there is certainly money at stake, the battle was largely for bragging rights.
There was a lot of privately funded residential construction during the 1930s, although there was certainly a major slowdown.
The crisis is not just about whether there is soon to be a bank run in Greece, although there is certainly the threat of one.
Although, there were certainly some excellent lines in there, mostly I was just rolling my eyes at the out-of-character narration for such a blunt and cynical character as Iris.
Although there was certainly a lot to take in at the launch, Activision was being more reserved with information this time around, perhaps keeping a few secrets in reserve.
