Both sentences contain no error/errors.
Neither sentence contains any error/errors.
Is either word in bold correct in the sentences?
Last edited by Tan Elaine; 03-Mar-2009 at 22:32. Reason: typo
The only idiomatic way to express your meaning is
Neither sentence contains any errors.
- 'Both' is normally used only to make positive sentences.
- The plural 'errors' is natural since it is typically assumed that more than one is possible/likely.