Spanish language Q&A Forum

The first person plural of present tense "to work" is nosotros trabajamos. The simple past is also nosotros trabajamos. Is the difference in translation based on context?  I may be overthinking this, but say it's noon and my mom asks me "how are you guys doing?" "Como estan?" and I reply "nosotros trabajamos."  Am I saying "we work (later) today" or "we worked (this morning)"?  I guess I'm supposed to follow this up with "esta manana" or "despues" to avoid confusion?

I thought that Habrian is in the future, but I have seen it used many times as not in the future. Are these two interchangeable?

Why is the answer documental not documentario?

¿Qué diferencia entre arreglar y reparar?

Muchas gracias

First, my dictionary has ser/estar(Spain) viudo, but I think it's even more complicated than a dialect issue. Here's a relevant discussion: https://forum.wordreference.com/threads/to-be-a-widow.596749/

Note that the discussion extends to several other relationship-like words such as soltero (but like viudo, these words are to my mind not relationship words, but rather civil/personal status words, which is why I think ser is often correct with them).

I have encountered real-life examples using both indicative and subjunctive with "una vez que..." and I'm just hoping to confirm or correct my understanding of how this works, please...? For examples, In an article about animals' senses of smell, in discussing the properties of volatile scent compounds I read "Una vez que se vaporiza, puede extenderse rápidamente por el aire" and in a tutorial for making tortillas mexicanas I found "Una vez que sepas cómo hacer tortillas..." I'm thinking that the first takes the indicative because its describing something factual understood to happen routinely, whereas the second takes the subjunctive because it's referring to something that from the writer's point of view hasn't happened yet or is more a hypothetical idea. Is this an accurate way to understand this or am I missing something...? If this is accurate, does it generally hold true with other, similar constructions like those discussed in this lesson? Thanks in advance, as I appreciate the help!