"We have a dress."
Translation:Nosotras tenemos un vestido.
When can you drop the nosotors/Nosotras? Sometimes I see the subject pronoun dropped, but others it's still used, and not sure what the rules are here
chris- you put the pronoun only when there's a confusion in certain tenses of conjugaison EX : preterito Imperfecto. yo tenía, tu tenías, ella tenía. As you see, the first and the third person have the same conjugaison. If you think that in the conversation that people won't know if you're talking about YO or about ELLA, you use the pronoun, to avoid confusion.
You never really use uno, unless counting. The proper articles are un, una, unos, unas, el, la, and feminine words always end in "a"