You can't use "to be" (is) to mean "to have" (doesn't have)
Punya in Indonesian, here to have in English. The negation is with the auxiliary "don't/does'nt/do not"
You is the person, the subject. You have it as the person that does the action (the verb)
Your is the pronoun, it's always before a noun.
You are beautiful = You're beautiful (2 words)
Your dog is beautiful = pronoun.