WAS/WERE

La forma del verbo TO BE en pasado simple es irregular. Fíjate en los distintos cuadros:

Affirmative:
I was
You were
He/She/It was
We were
You were
They were

Negative:
I wasn't
You weren't
He/She/It wasn't
We weren't
You weren't
They weren't

Interrogative:
Was I?
Were you?
Was he/she/it?
Were we?
Were you?
Were they?

Las respuestas son del tipo Yes, I was/No, I wasn't.
¡CUIDADO! Con el verbo TO BE no usamos nunca las formas did/didn't en pasado simple.
Ejemplo:
Were you at the basketball match yesterday? Yes, I was, but it wasn't very exciting.

¿Quieres practicar con algún ejercicio? En este caso es un juego, ¡pero tienes que ser rápido! Pincha aquí.
Nota: el juego te pondrá verbos en pasado simple y tú tendrás que ponerlos en su forma negativa, pero saldrán verbos de todo tipo, no sólo el TO BE.