Donde and adónde are two of the Spanish words that can be used to mean "where" — and they aren't the only ones. As our new lesson on "where" explains, your choice of words will often depend on the structure of the sentence as well as whether "where" refers to a destination or mere location.

Prepositions are probably the most difficult part of speech to learn, since they can have a variety of meanings that don't seem related to each other. Sobre, a common Spanish preposition, is no exception. Among other things, it can be the equivalent of the English "on," "about" and "over."

Usually, as in English, the future perfect tense of Spanish refers to an action of some sort that will be completed at a future time. An example is a sentence such as "habrá vuelto para lunes" (she will have returned by Monday). But in Spanish, despite its name, the future perfect tense can also be be used to refer to something that has probably already happened. It's a special usage of the "suppositional future," the use in Spanish of the future tense to refer to probability.

As you starting learning the conjugation of irregular verbs, one you should learn fairly early in the process the conjugation of venir. As the most common verb meaning "to come," it's used a lot — and generally the most common verbs are the most irregular. Venir holds true to that pattern, being irregular in nearly every tense and mood.