Past continuous = acción en curso o fondo en el pasado; past simple = hecho corto o terminado.
Forma
- was / were + -ing
- wasn’t / weren’t + -ing · Was she…? Were you…?
Uso
- Acción larga + when + acción corta: I was reading when he called.
- While + acción larga: While I was reading, he called.
- Acciones sucesivas: todas en past simple.
Errores frecuentes
- «They was playing» ✗ → They were playing.
- «I was seeing a fox» (acción corta) ✗ → I saw a fox.
- «I was knowing» ✗ → I knew.
