Breakdown of Nosotros caminábamos por la calle comercial.
nosotros
we
la calle
the street
caminar
to walk
por
for / by / through / in/during (part of the day)
Questions & Answers about Nosotros caminábamos por la calle comercial.
The translation says "We used to walk." Could caminábamos also mean "We were walking" here?
Absolutely. The imperfect tense describes background information, ongoing past actions, or habits in the past. Without more context, caminábamos can mean either a habitual action ("We used to walk") or an ongoing action ("We were walking"). For instance, if you added an interrupting event to this sentence, it would naturally be translated as "We were walking along the shopping street when..."
Why use por instead of en for walking on a street?
When talking about movement along, down, or through a space, Spanish uses por. If you say caminábamos en la calle, it focuses strictly on your static, physical location (you were walking within the confines of the street), whereas por captures the natural forward movement of strolling down or passing through it.
Does comercial refer to a TV commercial here?
Since this is a B2 sentence, wouldn't it be more natural to drop the pronoun Nosotros?