How do you say something equivalent to "we both" in English when there are three of us?
"We both are Spanish" >> "We three are Spanish"?
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2Note that your two-person version (We both are Spanish) is idiomatically non-standard / stylised / poetic. The natural form is We are both Spanish. – FumbleFingers Reinstate Monica Jan 23 '18 at 17:50
We three are Spanish
and
We are all Spanish
would work. Another phrase that might work is the three of us are Spanish.
The number "three" above can be replaced with any number, actually, but it sounds less idiomatic as the number gets higher. If it's a large group (more than 3 or 4 people) and all of you are Spanish, "we are all Spanish" sounds better. If it's a large group and only some of you are Spanish, one might say "some of us are Spanish" or "x of us are Spanish", replacing x with however many people in the group are Spanish.
According to this answer, it would be
"we all three are Spanish".
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2"We all three are Spanish" is not idiomatic. "We three are Spanish" would be correct. See this ngram viewer: books.google.com/ngrams/… – JeezLouise Jan 23 '18 at 17:39
