Why is the verb singular in "What's in the bags?"

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In a picture book, a boy carried two bags full of stuff he bought from a garage sale. His mum asked,

"What's in the bags?"

My question is why did they use "What's" instead of "What are"? I think since it is apparent that there are quite a few items in the bag, "What are" should be the more appropriate expression.

I appreciate your answer.

mangoyogurt

Posted 2016-09-20T20:15:37.790

Reputation: 653

Similarly, the name of the show is *Who Wants to Be a Millionaire?* rather than Want, even though presumably everyone would want to be a millionaire. As far as I know, singular is the default choice in this kind of question. – Damkerng T. – 2016-09-20T20:50:21.617

@DamkerngT. I was about to call "what is" a free relative clause here, and that might be another justification for permitting the singular... – P. E. Dant Reinstate Monica – 2016-09-20T21:46:35.037

Answers

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The contraction What's in your example expands to What is.

CGEL (pages 505-6:) tells us in Section 19 under Interrogatives:

In general, the interrogative pronouns who and what take the default value of singular.

Later in the same section, it also tells us:

The default singular values for who and what can, however, be overridden when there is a presupposition that the answer is plural:    (examples follow)

If there is an expectation or prior knowledge that the pronoun refers to a plural subject, the default singular value may not be expected. In your question (as edited) there are multiple items in the bags. It may therefore be proper to use the plural form of the verb in:

What are in the bags?

However, there is an important distinction between proper or grammatically justifiable and idiomatic. In common speech and usage, the question would very seldom be posed in that way by a native English speaker. In particular, the contraction What's is used in numerous contexts in which a plural verb might be "correct," but in which the construction What are would elicit puzzlement from the listener. For example:

What are going on?
What are new with you?
What are on television tonight?

When what is used as an interrogative pronoun and subject, it usually takes the singular form of a verb. To take the plural form, your example question could be reformulated so that what functions instead as an interrogative adjective:

What items are in the bags?

(A detailed answer to this and related questions can be found under the question Which is the correct question (“Who has” vs “Who have”)?)


Addendum: A harmless drudge asserts that what in the present construction may represent what he calls a "special singular sense" of the pronoun. It obtains only when the preposition following what's is in, and when the object of in is a noun or NP that describes a container. He reasons: There is an elision in the construction "What's in the sth" when sth is a container; the elided words are each thing. The OP's sentence, in his reasoning, therefore parses correctly as What is (each thing) in the bag?

P. E. Dant Reinstate Monica

Posted 2016-09-20T20:15:37.790

Reputation: 9 373

"*What are* the names of the Founding Fathers?" I must use a plural verb here, mustn't I? – Mari-Lou A – 2016-09-20T22:07:32.207

1@Mari-LouA The subject is names. The declarative form is The names of the Founding Fathers are what. Confusing, without a doubt. That's why I link to the answer above. – P. E. Dant Reinstate Monica – 2016-09-20T22:10:23.550

That's great. What about "what are in the galaxies?" I am saying that since I read the post that you mentioned above. It says the default singular-state of "what" can be overwrite when we can guess the answer will be in plural form. – Cardinal – 2016-09-20T22:19:52.487

I'm not sure that what is the subject in the OP's sentence. In the question: "What happens next?". what is the subject. I think "the bags" is the subject, the sentence could also be: "What are in the bags?" What's wrong with that question? :) – Mari-Lou A – 2016-09-20T22:20:00.007

1@Mari-LouA It's idiomatic to "require" that the interrogative what is treated as singular. The declarative forms of the OP's sentence are: In the bags is what and the sentence itself without the question mark: What is in the bags. If "what" is not the subject, "what is?" (Goodness, this is fun!) – P. E. Dant Reinstate Monica – 2016-09-20T22:30:57.280

1@Cardinal It's idiomatic to treat a question like "What are in the galaxies?" as ungrammatical, but as that answer says, there can be exceptions due to context. In the OP's case, though, it's hard to see one. – P. E. Dant Reinstate Monica – 2016-09-20T22:34:06.717

1"When what is used as an interrogative pronoun and subject, it can only take the singular form of a verb." -- Some counterexamples: What are there? What are the matters? (It's relatively easy to find lengthier and more realistic examples along the same lines in Google Books, BTW.) – Damkerng T. – 2016-09-20T23:03:44.597

@DamkerngT. I'll edit that to make it less commanding. :) But it is idiomatic to treat the interrogative what as a singular, and I'm not making that up! – P. E. Dant Reinstate Monica – 2016-09-20T23:06:14.997

I agree that it's idiomatic (or in my own words, "the default choice"), but to say that it can only take the singular form is probably too restrictive. :-) – Damkerng T. – 2016-09-20T23:08:19.377