no hacen nada

they do nothing

→ no
phrase Rare #43,600
they do nothing Can also mean “they don't do anything” or, depending on context, “they have no effect.” The subject is usually understood from context; “hacen” is the third-person plural form of hacer.
SP: Esos medicamentos no hacen nada para el dolor.
EN: Those medications do nothing for the pain.

No hacen nada.

They do nothing.

Te las tomas y no hacen nada.

You take them, and they don't do anything.

— Carandiru (2003)

Estas hierbas no hacen nada.

These herbs don't do anything.

— Avatar: Fuego y ceniza (2025)

Los antibióticos no hacen nada.

Antibiotics don't do anything.

Hay otros que no hacen nada.

There are others who don’t do anything.

— La sociedad de la nieve (2023)