If you want to say "We are all single dogs" in Engpsh, you can say "We are all single." "Single" is a word that means "not married." If you want to use a more colloquial or informal expression, you can say "We are all single and ready to mingle," which means that you are all single and looking to meet new people or find romantic partners. Alternatively, you can use the phrase "We are all bachelors/bachelorettes," which means that you are all unmarried.