what to say
Ne sachant pas quoi dire je suis restée silencieuse.
Not knowing what to say, I remained silent.
Tom ne répondit pas car il ne savait pas quoi dire.
Tom didn't answer because he didn't know what to say.
Tom savait exactement quoi dire.
Tom knew exactly what to say.
Je ne savais quoi dire devant une si belle fille.
I didn't know what to say in front of such a beautiful girl.
— Mon cœur est déjà pris (1999)
Nous ne savions pas quoi dire.
We didn't know what to say.
Tout à coup, personne ne sait plus quoi dire.
Suddenly, no one knows what to say.
Je ne sais vraiment pas quoi dire.
I really don't know what to say.
— Des étoiles sur la terre (2007)
Ne sachant pas quoi dire, il est resté silencieux.
Not knowing what to say, he remained silent.