1 and 2 have similar meanings. Use them to express she lived in Italy before another time/event in the past. "When we visited Italy, we asked Chloe for recommendations because she had lived in Italy." "She had been living in Italy for 3 years before she really felt confident in the language." Had been living - used when you say 'how long' Do not use 1 and 2 if there is no other time/event that happened afterwards. Just use past simple. "She lived in Italy for ages so her Italian is pretty good " 3 An action in the past which continues up to now, or has very recently ended. "I saw Chloe yesterday. I hadn't seen her in ages. Apparently, she's been living in Italy." Chloe just recently returned from living in Italy "Chloe has been living in Italy for 3 years." Adding the 'how long' detail makes it clear that Chloe still lives in Italy and this began 3 years ago.

Hi Margaret. The first one is pretty easy “she had lived in Italy” is past tense. The second is a little more complicated but means in the past but has already ended “She had been living in Italy for 3 years but now lives in America” The third sentence is also past tense but is continuous meaning still happening. “She has been living in Italy 3 years now”

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