Hi! Present perfect: HAVE+ Past Participle I have lived in NY for 5 years. (I still live in NY) Past Perfect: HAD+Past Participle I had lived in NY for 5 years. (I don't live there anymore). We use Past Perfect mainly when we are talking about a situation that happened before a main event in the past. Example: Mary was walking down the street when she noticed that a someone had dropped his wallet full of money. Main event: Mary was walking down the street. Situation that happened before the main event: someone had dropped his wallet. (In timeline: First someone dropped the wallet, then Mary was walking down the street, then she noticed the wallet. That's why we call the Past Perfect "the past of the past". Hope it helps! :)

Hi! Present perfect: HAVE+ Past Participle I have lived in NY for 5 years. (I still live in NY) Past Perfect: HAD+Past Participle I had lived in NY for 5 years. (I don't live there anymore). We use Past Perfect mainly when we are talking about a situation that happened before a main event in the past. Example: Mary was walking down the street when she noticed that a someone had dropped his wallet full of money. Main event: Mary was walking down the street. Situation that happened before the main event: someone had dropped his wallet. (In timeline: First someone dropped the wallet, then Mary was walking down the street, then she noticed the wallet. That's why we call the Past Perfect "the past of the past". Hope it helps! :)