was putting in, used to put in, was getting into, used to enter
¿Cómo voy a saber si se metía por las noches?
How was I supposed to know if he was sneaking in at night?
— The Chaser (2008)
Si Hubert no hubiese estado allí, ¡le metía un balazo!
If Hubert hadn't been there, I would have shot him!
— El odio (1995)