was losing
Mary pensó que Tom perdía su tiempo al estudiar latín.
Mary thought Tom was wasting his time studying Latin.
Cuando eran niños, te pedía que encontraras a Dev cuando se perdía.
When they were children, I used to ask you to find Dev when he got lost.
— Devdas (2002)
Pero no se perdía el trasero de la chica.
But he didn't miss the girl's backside.
— Tres colores. Azul (1993)
Adondequiera que iba, él se perdía.
Wherever he went, he got lost.