"You are not a dog."
Translation:Non sei un cane.
Check my other comment in this thread. It should be: "Tu non sei un cane."
btw The pronoun "tu = you" is optional because the verb (sei) is already giving us information about the subject.
What's the difference between "no" and "non" I never know which one I have to use
I assume because, logically speaking, multiple people couldnt be one dog. To use Voi the sentence probably would have been "you are not dogs" or "you all are not dogs"
No, because voi is used for a group and means "you all, y'all" or similar things whereas tu is used for one person which is what this is referring to.
At least that's what I believe is correct.
I've made the same mistake, I think it is because it's not correctly written. Should be "Lei non è un cane". The accent is missed in the sentence.