I couldn’t possibly address one day’s worth of errors found on the Yahoo! front page. I couldn’t handle just two hours’ worth of typos. There are just too many mistakes on Yahoo!, including this missing apostrophe:
I’m not sure what “33 years’ worth of taxes” is. I guess it’s the same as “33 years of tax returns.” Anyhoo, the writer omitted the apostrophe in what the Associated Press calls a quasi possessive. Other similar constructions that you’re likely to encounter:
- two weeks’ vacation
- three years’ experience
- his money’s worth