As the word reason is countable and one thing can have many reasons, I would imagine that saying "one of the reasons" is more logical than "part of the reason". However, many people (native and non-native speakers alike) tend to use the latter.
My questions are:
1- Is it correct to use "part of the reason"?
2- Is it correct to use "one of the reasons"?
3- If both are correct, is there any reason why "part of the reason" is more common?
Thanks
Best Answer
Yes, because saying it like this suggests that this reason is only part of a whole reason. If it were the whole reason we could say something like "the only reason..."
Yes, because saying it like this suggests that this reason is only 1 of many reasons. If it were the only reason we could say something like "the 1 and only reason..."
I don't think "part of the reason" is more common, but perhaps it is for you. The beauty of the English language is its diversity in using it.