Question

para que se usa was y were

Answer 1

Was/were es el verbo ser o estar (en infinitivo am,is,are).
Was se usa para los pronombre i/he/she/it
Y were se usa para los pronombres you/we/they

Answer 2

El WAS Y EL WERE se usan en el idioma ingles, se usan en pasado simple o simple past, del verbo to be.

El WAS se usa para los pronombres i ,he, she, it.
El WERE se usa en you, we, They