doesn't know how
Tom non sa come dire quel che vuole in francese.
Tom doesn't know how to say what he wants in French.
She doesn't know how to do it, does she?
Tom non sa come gestire i bambini.
Tom doesn't know how to handle children.
Non sa come preparare il coniglio.
He doesn't know how to cook rabbit.
Tom non sa come mi sento.
Tom doesn't know how I feel.
Tom non sa come spiegarla.
Tom doesn't know how to explain it.
Tom non sa come friggere il pesce.
Tom doesn't know how to fry fish.
Tom dice che non sa come farlo.
Tom says he doesn't know how to do it.
Non sa come l'ha trovato, forse è stato seguito.
He doesn't know how he found it; maybe he was followed.
— It's Such a Beautiful Day (2012)