ABSTRACT
Basically ser is used to answer questions about who or what something or someone is, whereas estar answers questions about where, how or in what condition something is: soy español, pero estoy en Londres ‘I’m Spanish, but I’m in London’; es callado ‘he’s the quiet type’, está callado ‘he’s keeping silent (at the moment)’; el hierro es un elemento ‘iron is an element’, el hierro está oxidado ‘the iron is rusty’.
