I wish there really was a "grammar checker" as opposed to a spell checker. That would be great, but such a thing doesn't exist yet. It would be much more complicated than a spell checker -- there are so many rules and exceptions to rules. In fact, thinking about it, I suspect it's not even possible.

But I would like to write a small, substitute grammar checker with very limited abilities. It would do trivial things like catch misuses of "less" when "fewer" is meant:

Less apples -> fewer apples.

But even that would be complicated -- there are edge cases and exceptions.

Oh well. :)

It looks like it is able to catch some basic things like "is" / "are" or "a" / "an". (This counts as grammar, right?)

Someone who knows the traps of the English language who can test / comment on this feature?

  1. Type: "I want less apples." 
  2. Click Review > Spelling & Grammar
  3. Grammar dialog appears:
       Number Agreement: "I want *less* apples"
       Suggestions: "fewer"
  4. Click Explain
  5. "Number Agreement

      A noun and the words that modify that noun must agree in number. "Many"
      and "few" modify plural nouns. "Much" and "less" modify nouns that cannot
      be counted or divided such as "much oil," "less happiness." In addition,
      the phrase "one of" must modify a plural noun."