Rule reminder
For polite requests in Italian: Può...? (Can you...? formal), Potrebbe...? (Could you...? very polite), Vorrei... (I would like...), Potrei...? (Could I...?). These are more polite than Puoi/Voglio.
Making a polite request to a friend: 'Can you pass me the water?' → '_____ passarmi l'acqua?'