Recently at work I was writing the following, and I have not been able to get a firm answer on which version is the most grammatically correct. The sentence is:

We would like to use one of the cables that _________ between rooms.

Is the correct conjugation run or runs?

I think 'run' is correct, because I think that the verb in the prepositional phrase is referring to 'cables' not 'one.' However, a number of colleagues have said that 'runs' is correct because one is singular.

  • 5
    Which do you mean? One of the cables, the one that runs between rooms? (i.e., only one cable runs between rooms and it's the one you're interested in) Or One of the cables, those that run between rooms? (i.e., all the cables run between rooms and you're interested in one of them).
    – deadrat
    Feb 7, 2017 at 23:03
  • I'll have to admit that my choice would be highly context-dependent, and I can't really, without a few "real" contexts to consider, give even a vague statement as to the distinction. (And I've actually run cables between rooms on a number of occasions.)
    – Hot Licks
    Feb 8, 2017 at 3:22

3 Answers 3


Hmm. I have just reversed myself on this, to the extent that I have removed my comment disagreeing with Chris M's answer.

Logically, it should be "run", unless it means that only one of the cables does run between the rooms, and we're choosing that one.

With the plural it parses as "one of [the cables [that run between rooms]]", giving what I think is the more likely meaning.

If you use "runs", it should parse as "[one of the cables] [that runs between rooms]", which analytically only makes sense with the interpretation I mentioned above.

But looking in the GloWBe corpus, "one of the [plural noun] that [3sg verb]" occurs more than three times as often as "one of the [plural noun] that [base verb]", which suggests that my reasoning does not in fact describe the current language.

I had a look in the COHA corpus (Corpus of Historical American English), and found that the form with the singular verb hardly appears before 1880, whereas the form with the plural has instances going back to the 1840's; but overall, the singular form is more prevalent, though only by about 20%.

The thing that convinced me, though, was noticing the phrase "one of the things that bothers" in the results. I realised that "one of the things that bothers me" is completely natural for me, where "one of the things that bother me" isn't.

So I conclude that "runs" is in fact idiomatic in English, though "run" is possible. I'm struggling to account for it: clearly "one of the cables" is felt to be the subject of "runs"; but I don't understand where the relative clause fits grammatically.

  • Thanks for your answer Colin. Your thinking is along a similar vein as mine, particularly the difficulty of discerning the difference between correctness and what feels natural in this instance. Given that the choice of "run" vs. "runs" appears to come down to a stylistic choice or personal preference, I'm not surprised that this was difficult to answer definitively. (As an aside, I feel that "one of the things that bother me" is more natural than "one of the things that bothers me" -- perhaps this is why I also feel "run" is more appropriate than "runs.") Feb 8, 2017 at 16:08
  • "Correctness" is a social judgment. I'm not interested in fashion.
    – Colin Fine
    Feb 9, 2017 at 20:13

When 'One of' is the subject of a statement/clause, it should be followed by a determiner and a plural noun and the verb should agree with the subject in number, i.e singular.

E.g: One of my friends is a pilot.

If 'one of' comes in a sentence with a relative clause, the verbs in the main clause and relative clause should agree with their respective subjects.

E.g: One of the cables that run between rooms is dangerously live.

More details and examples are here from the Practical English Usage by Michael Swan:

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The correct from is the singular because you're referring to only one of the cables

  • 1
    I've removed my comment disagreeing with you, as I now, to my surprise and confusion, do agree with you. See my answer.
    – Colin Fine
    Feb 7, 2017 at 23:37
  • 3
    Chris, could you please look over Colin’s answer? That’s the sort of thing we’re looking for. Short off the cuff answers without explanation or documentation are a bit too thin for this site.
    – tchrist
    Feb 7, 2017 at 23:52

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