Therearetheselines, "It's been a longdaywithoutyou, myfriend, and I'lltellyouallaboutitwhen I seeyouagain."
Justinthesetwolines, wehaveanexampleofthepresentperfecttense, "it's been a longday", and, atthesametime, peopleusethisstatementas a phrasetoexpressfatiguebecausetheywereextrabusythatdayortoexpressfrustration.
And, thenthisline, "And I'lltellyouallaboutitwhen I seeyouagain."