"Do you have the salt?"
Translation:Har du saltet?
Har du saltet? = Do YOU have the salt? (asking a single person) Har dere saltet? = Do you (guys) have the salt? (asking multiple people, speaking to more than one person)
å ha is the infinitve = to have. The present tense is formed by adding r = du har = you have. Transpose to form a question = har du?
so if i were telling someone to have a good day, or have the car running i would us ha rather than har.