to tell it to him
Non avremmo dovuto dirlo a lui.
We shouldn't have told him.
Should we tell him?
Penso che dobbiamo dirlo a lui.
I think we need to tell him.
Do you want to tell him?
I need to tell him.
He/She shouldn’t tell him.
I'm not about to tell him.
Perché non possiamo dirlo a lui?
Why can’t we tell him?
Make sure you tell him.
I have to tell him.