- Jim is on holiday. He has been to Italy.
He went to Italy.
He has gone to Italy.
- I've just been to the shops.
She has just gone to the shops: you missed her by 5 minutes. (she's not here, now)
-Alice isn't here at the moment. She's gone to the shop to get a newspaper.
- I've already been to the bank. (I have finished at the bank & back talking to the person, or on the phone explaining that you are no longer at the bank)
- I've already gone to the bank.(meet me outside the bank?) (on the cellphone, explaining that you are not home)