no podía dejar de

couldn't stop

→ no
phrase Rare #33,365
couldn't stop Used before an infinitive to say that someone was unable to stop doing something. It can also mean "couldn't help" in contexts such as emotions or reactions.
SP: No podía dejar de pensar en ella.
EN: I couldn't stop thinking about her.

No podía dejar de sospechar que había algo detrás de ello.

I couldn't help but suspect there was something behind it.

El bosque estaba muy oscuro, y ella no podía dejar de temblar de miedo.

The forest was very dark, and she couldn't stop trembling with fear.

Ella no podía dejar de pensar que la salud es importante.

She couldn't stop thinking that health is important.

No podía dejar de mirarla.

I couldn't stop looking at her.

No podía dejar de reírse.

He/She couldn't stop laughing.

Tom no podía dejar de pensar en Mary.

Tom couldn't stop thinking about Mary.

No podía dejar de llorar.

I couldn’t stop crying.

No podía dejar de reír.

I couldn't stop laughing.