"You have your beer."
Translation:Du hast dein Bier.
You are mixing up two types of "you". "Du" is used for informal singular (one person) and "euer" (not eure, because Bier is neuter) is used for plural (a group of people).
Anyway, "du hast euer Bier" is a correct answer, meaning "you (2nd person sing.) have your (2nd. person pl.) beer. The beer of more than one person, I mean. (so I won't give you mine!)
ihr/euer also is used by germans for singular as an alternative for "Sie".
Why is this dein and not deinen?? I thought in the accusative it would be deinen. >??
No. Deines works like the English "yours".
Ich habe mein Bier und du hast deines.
Yes I looked up a video, ONLY MASCULINE CHANGES INTO ACCUSATIVE! Fem and neu stay the same
Ihre Bier for Sie(polite way of you),You can either use "Du hast dein Bier" or"Sie haben ihr Bier"
In your second sentence, you forgot to capitalise Ihr. Lowercase ihr means "her".
Du hast dein Bier = "You have your beer" (informal, individual)
Ihr habt euer Bier = "You have your beer" (informal, to a group)
Sie haben Ihr Bier = "You have your beer" (polite, any number of people)
Sie haben ihr Bier = "You have her beer" (polite)
To answer 'MAB-15', note that the possessive pronouns are all inflected to match the neuter (das) Bier in accusative case, i.e. they all have 'blunt' endings. You would only use -e endings for grammatically feminine objects, i.e. Du hast deine Katze = "You have your cat".
Wouldn't it be "Du hast deinen Bier" because "Du" is the main subject, and "Bier" is the indirect subject? I don't understand the Dative Case...
Good news, this is accusative case! Review Duolingo's notes (scroll down).
Du is the subject (nominative case)
hast is the verb. It takes an object
dein Bier is the direct object. What do you have? "A beer".
Bier is a neuter object (remember it in your head as das Bier, the drink for all genders), so doesn't need an ending on the possessive pronoun dein in either the nominative or accusative case.
Check out my how-to-guide for constructing possessive pronouns here.
Deine is akkusative oder was?I thought subject+akkusative was right...