was watching, was observing
Dan observait les enfants dans le parc.
Dan watched the children in the park.
Derrière le rideau, quelqu'un observait la scène.
Behind the curtain, someone was watching the scene.
Je n'avais pas conscience que quelqu'un m'observait.
I wasn't aware that someone was watching me.
En ce moment, un personnage qui l'observait avec attention s'approcha de lui.
At that moment, someone who had been watching him closely approached him.
Thomas l'observait du coin de l'œil.
Thomas was watching him out of the corner of his eye.
Je me suis rendu compte qu'on m'observait.
I realized I was being watched.