ellos detienen

stop, detain, arrest

→ detener
detien to stop + en 3rd-person plural present (indicative or subjunctive)
verb · third plural · present indicative Rare #39,199
stop
SP: Los frenos detienen el coche rápidamente.
EN: The brakes stop the car quickly.
detain, arrest Often used for police detaining or arresting someone.
SP: Los policías detienen a dos hombres en la calle.
EN: The police officers arrest two men in the street.
Conjugation of detener
Indicative present
SingularPlural
First detengo —
Second detienes —
Third detiene detienen
Subjunctive present
SingularPlural
First detengo —
Second detengas —
Third detiene detienen

No se detienen.

They don't stop.

— Suzume (2022)

Y no lo detienen.

And they don't stop him.

— Ciudad de Dios (2002)

Entonces, se detienen.

Then, they stop.

— Oppenheimer (2023)

En los labios de todos algunas palabras llegan y se detienen.

On everyone's lips, certain words arrive and come to a halt.

— Devdas (2002)

Tenemos nuestras tiendas, pero los juegos nunca se detienen.

We have our stores, but the games never stop.

— Gully Boy (2019)

Los polis, detienen a los malos.

The police arrest the bad guys.

— American Gangster (2007)