Question

cuando puedo utilizar was o were

Answer 1

se utiliza el was y were en 
i was 
you were 
she/he was 
we were 
you were 
they was 
lo que pasa es que esto se pone en oraciones afirmativas 
ej: i was hungry

Answer 2

WAS:ⓢⓔ ⓤⓣⓘⓛⓘⓩⓐ ⓔⓝ I,HE,SHE
WERE:THEY,WE,YOU