"Tú" and "usted" both mean "you", but "usted" is more formal. Depending on which of these words you use, verbs (like "bebe/bebes") conjugate differently.
As you know, you use "bebo" in a sentence when you have "yo" before it. In the same sense, you use "bebes" when you have "tú" before it and "bebe" when you have "usted" before it.
Also "usted bebe vino" translates to you drink wine while "usted beben vivo" does not translate. Vivo is the translation of vivir (which means to live) that is used when the subject is I. An example would be "Vivo en una casa" which translates into "I live in a house". Also beben would be the conjugation of the verb beber that is used with ustedes.
Check out this chart. http://www.123teachme.com/spanish_verb_conjugation/beber
In Spanish there is at least 4 you.
tú an informal singular you
usted a formal singular you, a 3:rd person like él, ella when you conjugate verbs
vosotros an informal plural you in Spain
ustedes a formal plural you in Spain, a plural you outside Spain, a 3:rd person conjugated like ellos, ellas