You have probably learned that the
auxiliary verbs 'do' and 'did' are not used in positive sentences - for
example: He went to the store. NOT He
did go to the store. However,
in order to emphasize something we feel strongly these auxiliary verbs can be
used as an exception to the rule.
Examples:
No
that's not true. John did speak to Mary.
I do believe that you should think twice about this situation.
I do believe that you should think twice about this situation.
