Resultados posibles:
estabas sofocando
-you were suffocating
Imperfecto progresivo para el sujetodel verbosofocar.
estabas sofocando
-you were suffocating
Imperfecto progresivo para el sujetovosdel verbosofocar.

sofocar

Y luego trataste de que se callara pero no te diste cuenta que la estabas sofocando.
And then you tried to keep her quiet, but you didn't realize you were suffocating her.
Palabra del día
el pantano