of his mistake
Hanno riso del suo errore.
They laughed at his mistake.
Non dovresti ridere del suo errore.
You shouldn't laugh at his mistake.
Risero tutti del suo errore.
They all laughed at his mistake.
Loro risero del suo errore.
È cosciente del suo errore.
He is aware of his mistake.
Non ridere del suo errore.
Don't laugh at his mistake.