didn't say anything
Si no decía nada la gente siempre imaginaba lo peor.
If I didn't say anything, people always imagined the worst.
— El club de la lucha (1999)
Mientras yo hablaba, él no decía nada.
While I was talking, he didn't say anything.
Hablaba mucho, pero no decía nada.
He talked a lot, but he didn't say anything.