Range.GrammaticalErrors Property (Word)
Returns a ProofreadingErrors collection that represents the sentences that failed the grammar check on the specified document or range. Read-only.
There can be more than one error per sentence. If there are no grammatical errors, the Count property for the ProofreadingErrors object returned by the GrammaticalErrors property returns 0 (zero).
For information about returning a single member of a collection, see Returning an Object from a Collection.