which of these two sentences is correct?

This product will stand up to ten years use.

This product will stand up to ten years of use.

In addition, I cannot understand the meaning of the following:

ten years use.

ten years of use.

Thanks in advance.

2 Answers 2


Either is correct. They both mean that the product will last, even after being used, for ten years.

  • 5
    Though note that there should be an apostrophe after "years" for the first case, as it is possessive: ten years' use. Jul 16, 2014 at 12:33
  • what a bout this version?the use of ten years
    – nima
    Jul 16, 2014 at 15:02
  • And, is your points applied for these? a ten years old boy
    – nima
    Jul 16, 2014 at 15:03
  • 1
    No, not in American English. We would say "a ten-year-old boy".
    – miltonaut
    Dec 6, 2014 at 16:57

I agree with the other answers to this post that both expressions are valid. A Google Ngram comparing the two shows that "X years of use" is more common, by an order of magnitude, than "X years use."

  • I would upvote this answer if it provided a screen grab of the Ngram, or a link. Dec 23, 2014 at 12:33

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