Hi, I am not very sure if my answer can help, but this is my opinion: -Google have said before that they didn't use Clang and LLVM because of performance issues. Because Google is also a company, many people work in it, so it is a Collective Noun, and we use a Collective Noun as a plural one. I think this sentence is different from the situation we are talking about (no using a negative sentence after before ).
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