Conditional verb forms in Spanish
Like related languages, Spanish has a single-word verb form that roughly corresponds to English would/'d .... It generally expresses either (a) something that would happen based on a condition (the condition may be implied rather than stated), or (b) future-in-the-past. In fact, there are some other details we'll need to look at later, but here are some examples of Spanish conditional forms with these meanings:
(a) lo haría si...
I'd do it if...
(b) dijo que vendría
he said he'd come
Suggest a change / Cambios sugeridos
The name conditional is often given to this verb form, given the first type of usage illustrated above.