Răspuns :
uite niste exemple
I had had my car for four years before I ever learned to drive it.I had had a bath, but I didn't feel clean, so I had a shower.
I had had my car for four years before I ever learned to drive it.I had had a bath, but I didn't feel clean, so I had a shower.
In ambele cazuri al doilea "had" este verbul. In primul caz have este auxiliarul, care se foloseste pentru present perfect . ( o actiune trecuta ce are impact in prezent. se pune accentul mai ales pe impactul ei, nu pe perioada actiunii). Iar in al doilea caz had este auxiliarul de la past pefect. ( o actiune terminata inaintea altei actiuni).