Question

he said ,"I have not done that " ( begin : he denied)

Answer 1

he denied to have done that work .
Hope it is helpful .

Answer 2

He denied doing that.

Explanation:

The given sentence is in direct speech and while changing to reported or indirect speech, reporting verbs like denied, promised, claimed, refused, suggested, etc.can be used to report the action done. The tense form should not be changed while changing from direct to indirect. Since it is in the “simple present tense” in the given sentence in direct speech form, the same tense should be followed in the reported speech while beginning with ‘He denied’.