There was / There were (A2)

Para decir que una cosa existía en el pasado, usa There was.

There was = uno

There were = más de uno

Para decir que dos o más cosas existían en el pasado, usa There were.

¿Uno o más de uno?

Primero cuenta. Una cosa → There was (There was a cat.). Dos o más → There were (There were three cats.). Las cosas que no puedes contar, como traffic, water, food, noise, también usan There was, porque las tratas como una sola cantidad, no como muchas.

There wasn't = uno

Para una cosa que no existía, usa There wasn't (= there was not).

There weren't = más de uno

Para más de una cosa que no existía, usa There weren't (= there were not).

Was there / Were there

Para preguntar, pon was / were primero: Was there...? para uno, Were there...? para más de uno.