The conversation between human and AI assistant.
What is the difference between I had had and I have had?
Can you explain the difference between "I had had" and "I have had"?
Certainly! "I had had" is the past perfect tense, indicating an action that was completed in the past before another action also in the past. "I have had" is the present perfect tense, indicating an action that started in the past and continues up to the present.