Singular:
* σύ (sy): This is the most common and formal form used for addressing someone directly. It's equivalent to "you" in English.
* εσύ (esy): This is a more informal and familiar form of "you," often used with friends and family.
Plural:
* εσείς (eseis): This is the formal form for "you" when addressing multiple people.
* σείς (seis): This is the informal form for "you" when addressing multiple people.
Polite Forms:
* εις (eis): This is a very formal and polite form, often used when addressing someone of higher status or authority.
* υμάς (ymas): This is a polite form for addressing multiple people, usually when speaking formally.
It's important to note that the choice of "you" in Greek depends on the relationship between the speaker and the listener, as well as the level of formality of the situation.