Hola a todos, I hope you can help me! I am writing about working as a volunteer for a month, but I'm stuck on tenses (again!). It is part of an informal letter to a friend. In English, I am trying to say: "As you know, I spent a month in Mexico and I have just got back. I was working as a volunteer..." In Spanish, this is what I have come up with so far: "Como lo sabes, pasé un mes en México, y acabo de regresar a casa. Estuve trabajando como voluntaria..." I'm not sure which past tense to use for that last sentence. I decided to go for pretérito as the time frame had been defined in the previous sentence. But perhaps it should be estaba trabajando because I haven't been specific about dates etc.? Or indeed, maybe it should simply be trabajé? I am lost. Any help would be greatly appreciated! Gracias!