By Invitations, Present perfect

Can anyone please tell me which one of the two sentences below is grammatically correct, and why? I am still confused as to which tense to use, the present perfect or the perfect past tense."A friend of mine has sent me an e-mail asking why I haven't yet sent him...

Hi, Thank you for your kind words. Ben: You told something about your boss a while ago. I can’t remember.Mike: I told you that he invited me to the restaurant that he has been going to eat regularly since he became rich. " src="/emoticons/emotion-69.gif">" src="/emoticons/emotion-46.gif"> "...

Sir, IV - The present prefect used with "for" and "since" A. "for" is used with a period of time: for six days, for a long time. "for" is used with the simple past tense denotes a terminated period of time. (e.g) We lived there for ten years. ( but we don't live there now) "for"...

I think the idea is that semantically the present perfect simply refers to some time in the past, but pragmatically the distance in the past is dependent on the specifics of the situation. ____________ Cases where a greater amount of time before the present moment is under consideration are the...