Question

explicacion sobre el was- were

Answer 1

se utiliza en tiempo pasado! 
was es para terceras personas

I
YOU
SHE
HE

 es el was
& el were es para
WE
THEY

Answer 2

Se usa WAS o WERE para decir ERA o ESTABA

WAS es para singular (era,estaba)  
WERE es para el plural (eramos,estábamos)

Se usa el WAS con los siguientes pronombres:
I
YOU
HE
SHE
IT

Se usa el WERE con los siguietes pronombres:
YOU
WE
THEY

Ejemplos:

Yo ERA su novio  ----->  I WAS her boyfriend

nosotros ERAMOS amigos ----->  we WERE friends