no podría haberlo hecho

couldn't have done it

→ no
phrase Uncommon #15,413
couldn't have done it Used to say that someone would not have been able to do something, often because they lacked help or the necessary ability. The pronoun "lo" means "it" and refers to something already understood from context.
SP: No podría haberlo hecho sin tu apoyo.
EN: I couldn't have done it without your support.

Tom no podría haberlo hecho solo, creo.

Tom couldn't have done it alone, I think.

No podría haberlo hecho sin él.

I couldn't have done it without him.

— Gully Boy (2019)

No podría haberlo hecho mejor.

I couldn’t have done it better.

— El quinto elemento (1997)

No podría haberlo hecho, lo llama saqueo.

He couldn't have done it, he calls it looting.

— Anatomía de una caída (2023)

Tom no podría haberlo hecho sin la ayuda de Mary.

Tom couldn't have done it without Mary's help.

No podría haberlo hecho sin tu ayuda.

I couldn't have done it without your help.

Mary no podría haberlo hecho.

Mary couldn't have done it.

No podría haberlo hecho solo.

I couldn't have done it alone.

No podría haberlo hecho sin su ayuda.

I couldn't have done it without their help.

No podría haberlo hecho.

I couldn't have done it.

— Incontrolable (I Swear) (2025)