Spanish language Q&A Forum

At the other hand there are no examples for "por.

Can "por" also be interpreted as "by" 

Why does the accent change from comprárselos to cómpreselos depending on the conjugation? Does the stressed syllable always change in the imperative form? 

Would another way of explaining the difference be to say that in English you could get the meaning of  the imperfect by saying "The teacher [was] opened[ing] the door" and the indefinido as "The teacher [had] opened the door"

please, help to understand why when I am using formal question

tiene un boligrafo is correct but

tiene usted un boligrafo marked as incorrect

Re: ¿En qué trabajas / trabaja? What do you do? ¿A qué te dedicas / se dedica? What do you do?

Hello, Hope you, the team and families and friends are all well in these difficult times. I was wondering what the difference is if I were to say: "¿A qué trabajas? Since per the lesson this means: "If you want to ask someone what he/she does for a living, you can ask this way: ¿En qué trabajas? What do you do? (Lit: In what do you work?) I included "trabajas" in my reply, but it was marked as incorrect. Thank you for being there and helping out. Nicole

Why is it "El cartero pasa todos los días a las tres de la tarde" instead of ""El cartero pasa todos los días a las tres por la tarde"? I thought we learned that it should be en, a, or por to express a specific time of the day?