How do you say was in Spanish?

I was = fui (fwee) or estuve (es-tu-be) He was = fué (fway) or estuvo (es-tu-bo)
era

or

estaba

The verb to be it can be translated into two verbs in Spanish: "Ser" or "Estar".

"Ser" is when something or someone has a "permanent" quality, like:

I am very good at ping pong = Soy muy bueno en el ping pong

"Estar" refers at something that is in a transitory state. For example:

I was in Barcelona = Yo estuve en Barcelona

It was deflated = Estaba desiflado