Breakdown of ¿Te has olvidado de nuestra cita?
nuestro
our
la cita
the appointment / the date (romantic)
haber
to have (auxiliary)
olvidarse de
to forget about
Questions & Answers about ¿Te has olvidado de nuestra cita?
Why do we need the preposition de after olvidado here?
This sentence uses the verb olvidarse, which is a prepositional verb. This means it requires a specific preposition to connect to the thing you are forgetting. For olvidarse, that preposition is always de.
Could I just say ¿Has olvidado nuestra cita? without te and de?
Yes, you can! Both olvidar algo (to forget something) and olvidarse de algo (to forget about something) mean the same thing and are used interchangeably in Spain. The tricky part is remembering that if you use the reflexive pronoun te, you must also include the preposition de.
Why is the pronoun te placed before has and not attached to olvidado?
In compound tenses like the present perfect (has olvidado), pronouns must always go before the conjugated helping verb, which is has here. You can never attach a pronoun to a past participle like olvidado when it forms part of a compound tense.