Question

o que siginifica was e were em ingles

Answer 1

Was-era Estava Were-era Estava I was You were He was She was It was We were You were They were

Answer 2

Observe a frase "I am."
"I am" significa "Eu sou" e/ou "Eu estou"

"Was" é o passado de "Am".
"Were" é o passado de "Am", porém no plural.

Exemplos:
I was watching tv last night = Eu estava assistindo TV noite passada
We were watching tv last night = Nós estávamos assistindo TV noite passada

Quando se utiliza "was"?
Quando o sujeito da frase for "eu, ela, ele, isso" ou seja, "I, she, he, it".

Quando se utiliza were? 
Quando o sujeito da frase for "nós, eles, elas" ou seja, "we, they"

Exemplos com significado "Eu era": 

I was different = Eu era diferente.
We were different = Nós éramos diferentes.