Jelaskan perbedaan Present Perfect Tense & Past Perfect Tense; penggunaannya, keterangan waktunya, gabungan tensesnya

PRESENT PERFECT TENSE

+ penggunaan: -for something that started in the past and continues in the present [ex: i have lived in Norwegia all my life]
- for something we have done several times in the past and continue to do [ex: he's played the piano ever since he was a toddler.]
-when we are talking about our experience up to the present [ex: my last birthday was the worst birthday i have ever had]
-for something that happened in the past but is important at the time of speaking [ex: my mom has gone shopping]

+ gabungan tense : have/has + past participle

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PAST PERFECT TENSE

+ penggunaan: express an action which has occurred in past and action which has occurred in past before another action in past/ actions that happened BEFORE  past event. [ex: as soon as I had done my homework, i got some rest]

+ gabungan tense: had + past participle

maaf kalau salah semoga membantu:)