Difference between "Ihr", "Du", "Euch", "Sie", and "sie"

[Ryde.r]

PLEASE give a long sentence for each example and properly explain the difference between each. I am ultimately confused. Best answer gets some Lingots.

[Ithil.]

Du = you (2nd person singular)
sie = she (3th person singular) OR sie = they (3th person plural)
Ihr = you (2nd person plural) OR sie in the Dativ (for her)
Sie = U (polite)
Euch = Ihr in the Akkusativ (They) und Dativ (For Them)

German and English are both not my native language so it is a little hard for me to explain correct.
But remember Google is your friend.

[relox84]

There are many ways to translate you into German:

du (accusative dich, dative dir, possessive dein) is used when when speeaking to a single person whom you are familiar with (you should avoid using it with strangers and people with authority) it corresponds to the French tu

ihr (accusative & dative euch, possessive euer) is used when speaking to multiple persons whom you are familiar with. It is the plural equivalent of du

sie (accusative sie, dative ihnen, possessive ihr) is the third person plural pronoun, corresponding to the English they

Sie (accusative Sie, dative Ihnen, possessive Ihr) is the formal second person pronoun used when speaking to one or more persons whom you would not use du or ihr with. It is only distinguished from the third person plural pronoun through capitalisation​.