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I am trying to write a sentence like the following:
The skills I acquired is/are knowledge in A, B, and C.
However, I know that uncountable nouns such as knowledge doesn't go with are. Yet, the subject is a plural noun skills so are seems to be appropriate. Which one is correct?
The sentence you quoted is a shortened version of this: "The skills I acquired are knowledge in A, knowledge in B, and knowledge in C." The second and third occurrences of "knowledge in" may be omitted, but the things acquired are still multiple.
