@Diana Gaus posted:
I found a sentence like this: These benefits are of important values.
I was wondering why there should be 'of' after are?
Hello, Diana, and welcome to the Grammar Exchange.
Where did you find the sentence in question? Can you provide a link to the passage that contains it? The sentence is not necessarily incorrect, but we need context in order to tell whether the possible meaning is the intended one.
I see that the sentence above is grammatically wrong. 'Be' of + a noun phrase is equivalent to 'be' + adj. 'Value' in this structure is used as an uncountable noun.
As I said above, the sentence is not necessarily incorrect. "Values" could indeed be intended as a count noun here. To help you and Hussein see the possible meaning of the sentence as written, consider these related sentences:
(i) These are pictures of important buildings.
(ii) These pictures are of important buildings.
Thus, IF the intended meaning of "These benefits are of important values" is that there are benefits associated with certain important values, and some of those benefits are present (perhaps on a list), the sentence works.
That's why I say we need context.