Which of these is correct?
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A student has posted what appears to be the images of X and Y
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A student has posted what appear to be the images of X and Y
I would appreciate if you can also explain which one is correct and why
singular-vs-pluralsubject-verb-agreementverbs
Which of these is correct?
A student has posted what appears to be the images of X and Y
A student has posted what appear to be the images of X and Y
I would appreciate if you can also explain which one is correct and why
Best Answer
I think this is a great question asked by InternetUser even though it's not one regarding a point of grammar that I find particularly interesting; however, because I really like this question, I feel that I should answer it even though I shall probably be downvoted for my usual sailing against the wind. Without further ado, here is my answer: the only correct choice is your second choice above:
Even though I like most of the other answers because native speakers often say it both ways, "appear to be" is the only grammatically-correct choice. The reason for this is that "appear" is a copula in this sense like "seem" or "be". One would not use "is" if we changed "appear to be" to "is":
As I've stated above, "images of X and Y" is the predicate complement of the copula "appear to be". Now, just because it's a copula doesn't make or break anything, but it is linked to "to be", which is the copula that, in English, is the equivalent of an equal sign:
Now, the fact that this is a copula only answers your question in the example you posit above; it doesn't answer every situation wherein a pronominal "what" directly precedes a verb that isn't a copula or doesn't have copular functions. For instance, in the example,
it would not be third-person singular "amounts" therein because the pronoun "what" replaces a "plural noun + that" construction:
Your above example could be rewritten this way:
In this instance above, one can easily see that the pronoun "what" replaces "images that", which is a "plural noun + that" construction. Now, if it were rewritten with a singular noun, i.e., "image", it would be written this way:
I hope that might make sense to you. It can be quite confusing. I agree somewhat with what everyone else has said that it can be said both ways only because "native speakers" say it both ways all the time, but just because they say it both ways all the time doesn't mean that one way they're saying it isn't more correct than the other. In your original example, I would say "appear" is more correct than "appears" and I'm euphemizing here, just to let you know. Take care and good luck in your endeavors!