My friend wrote me this sentence and got me really confused.
"Attached is the file you've requested."
Is this sentence grammatically correct? Why isn't it "attached is the file you requested"? I thought phrases like "ever since you sent it", "the time I went there", and "the person I talked to" always used past simple. Am I wrong?
Is it because the full sentence she meant to say is "The copy attached is the copy you've requested"?
Then is it possible to say "I attached the copy you've requested"?