Both of the boy's parents were happy with the new school.

Is it proper English to say "both of the boy's parents", as in the above sentence, to mean "both parents of the boy"? Or do we have to use the latter?


A similar question appeared on a private advanced-level English test. The task was to spot a mistake in a sentence similar to the above. The correct answer was apparently the place of the apostrophe: in terms of the above example, it should read "both of the boys' parents" (meaning "parents of both boys"), with the argument that, in proper English, "both" can only refer to "boys" in such circumstances. I found this argument a bit shaky though. I am not a native English speaker, but I have studied and spoken it for many years, and the above sentence looks perfectly correct to me. I also could not find any helpful references on the internet that address this scenario.

  • 1
    Yes, it seems perfectly clear to me that there is one boy and two happy parents.
    – Jim
    May 31, 2013 at 15:01

2 Answers 2


I would say the sentence is perfectly fine with boy's, and the test is mistaken. There is absolutely nothing wrong with both of the boy's parents. The only reason I can think of why it would be wrong is if context made it clear that this had to be about two boys. That is possible, if this sentence is part of a story; was it?

  • I agree that context would have helped, but there wasn't one. The sentence was provided as is.
    – Artyom
    May 31, 2013 at 16:16
  • Bearing in mind that the written form is just a pale imitation of "real" (i.e. - spoken) language, I think you have to say that both of the boys parents is inherently ambiguous. Sure - you can put the possessive apostrophe before or after the "s" in "boys" in the written form. But there's no way to indicate which one you mean in speech, which is what really counts. May 31, 2013 at 17:02

Both is suppletive for the complex quantifier *all two, which doesn't occur in English.

  • All three/four/seventeen/ten thousand of them have registered.
  • *All two of them have registered = Both of them have registered.

The problem, if it is is a problem, is that the sentence

  • [Both of [the boy's parents]] were happy with the new school.

is indistinguishable in speech from the sentence

  • [[Both of the boys]' parents] were happy with the new school.

but unfortunately doesn't mean the same thing.

Incidentally, this is a very rare situation. It's much more common for sentences to be unambiguous in speech, but ambiguous in writing, like most Garden Path Sentences.

Since it would be ambiguous in speech, such a construction is frequently avoided in writing. This isn't a rule about correctness, just efficiency. If you really want to be exact, this is not the construction to use; but if it doesn't really matter how many boys there were, no problem. Every sentence is multiply ambiguous; the trick is making sure it doesn't matter.

  • 1
    Ah. I should have scrolled down before posting a comment against Cerberus's answer. One thing I've definitely learnt from you on ELU is that language is essentially spoken - written forms are at best secondary. And I was immediately struck by the fact that the position of the apostrophe in boys here (and thus the meaning of the utterance) can't be conveyed in speech. Still - writing may have won that particular battle, but it's never going to win the war. May 31, 2013 at 17:10
  • 1
    LOL, if possible. Yes, that appears to be enough letters to satisfy the software gods. May 31, 2013 at 18:07
  • or use a link May 31, 2013 at 18:14

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.