The phrase "a legitimate reason why" is correct and usable in written English.
It can be used when you want to explain or justify a particular action or decision with a valid rationale.
Example: "There is a legitimate reason why we need to change our meeting time, as several team members have scheduling conflicts."
Alternatives: "a valid justification for" or "a sound reason for".
There may be a legitimate reason why the country's biggest banking institutions would oppose this legislation.
Parker explained there was a legitimate reason why they had been late and did his polite best to make it clear the punishment was disproportionate to the crime.
"We're in the process of investigating each absence to see if there is a legitimate reason why the soldier did not show up".
I guess the takeaway would be, if women are acting "crazy," there's a legitimate reason why.
This means there must be a legitimate reason why they can't pay their mortgages.
If you don't believe in a Creator, then believe there's a legitimate reason why you were put on the planet.
In their ruling today, the appeal judges dismissed arguments that the second process was barred because essentially the same charges were advanced with no fresh evidence, that it was an abuse of process to subject the pair to a second set of procedures, and that there was a failure to give any legitimate reason why it was fair to reopen the matter.
"I don't see any legitimate reason why this couldn't be done," said Levine.
Calling cards also link telephones that may never have called each other: there could be a perfectly legitimate reason why a group of telephones in Bratislava all use a single calling card belonging to a dry cleaner in Laplace, Louisiana; but then, maybe there isn't.
Understand that there is typically no legitimate reason why a person would need you to cash a check or a money order for them and provide money in return.
As a matter of public policy, there's no legitimate reason why we shouldn't deter that through higher taxes.
