SPANISH PREPOSITION "A"
This is to remind non-Spanish speakers that, regardless of what they may hear natives say, the preposition “a” is used when the direct object is a person (and very often when it is a pet). V. gr.: Vi a Pedro cruzar la calle. Di pan a mi perrita. No he dado dinero a nadie. Otherwise, the preposition is omitted: Vi el árbol que ha plantado Jacinto. Visitamos la ciudad en un par de horas. Prepositions are often complicated in any language, and even native speakers may falter in their usage.