What part of speech is in did you bring the dog in?

Here's a breakdown of the parts of speech in the sentence "Did you bring the dog in?":

* Did: Auxiliary verb (helping verb)

* you: Pronoun (subject)

* bring: Verb (main verb)

* the: Determiner (article)

* dog: Noun (object)

* in: Preposition (tells where)

Let me know if you want to explore any of these parts of speech further!