[ATDM]

Thank you for your prompt reply, although I still do not fully understand the distinction. I know of several instances when people were corrected in their use of one the two verbs in which the negative and positive aspects were not an issue. Rather it was the context, structure of statement, and contents.
I apologize for requesting more information (English is not my first language), I am just trying to get to the bottom of the issue in order for me to know in which instances it would be appropriate to use each of the two verbs (especially since people around me get corrected in their use of the verbs).
Thank you.