When to use
le? Someone told me that
le is used in Spain and
lo is used in Latín America.
Is there a rule on when to use them?
As an example:
Your question is a bit general but you have a nice table on the RAE website that can help you:
So for the third person you have:
Indeed, there are rules, but it is important to distinguish between the rules that govern Standard Spanish (which should be used in formal communication) and informal or dialectal Spanish — which still have rules, just different from the standard.
In general, the following table explains when to use each of the object pronouns in third person:
That said, there are circumstances where this table might change slightly and some of the changes are actually considered, due to their very high level of use, acceptable in Standard Spanish.