si no los

if you don't [verb] them

→ si
phrase Rare #31,079
if you don't [verb] them This is a compositional fragment: si no means “if not,” and los is the masculine plural direct-object pronoun “them.” The verb that follows los determines the specific meaning. In some contexts, si no can instead mean “whether ... not.”
SP: Si no los invitas, no vendrán a la fiesta.
EN: If you don't invite them, they won't come to the party.

Aunque a veces dudo si no los obligan.

Although sometimes I wonder if they aren't being forced.

— Taxi Express (1998)

Si no los matas, ellos te matarán.

If you don't kill them, they'll kill you.

Si no los conoces, no saben nada de música.

If you don't know them, they don't know anything about music.

— Intocable (2011)

Si no los guardas, no puedo ayudarte.

If you don't save them, I can't help you.

— Jugada maestra (2026)

Si no los atrapo me mandarán a dirigir el tránsito.

If I don't catch them, they'll send me to direct traffic.

— Taxi Express (1998)

Si no los uso, mi sangre no fluye y voy a desmayarme.

If I don't use them, my blood won't flow and I'll faint.

— Intocable (2011)

No les diría esto si no los quisiera.

I wouldn’t tell you this if I didn’t love you.

— Malcolm X (1992)

Si no los enterramos, ¿para qué los queremos?

If we don't bury them, what's the point of having them?

— Por un puñado de dólares (1964)