What is You in singular form Spanish?

The singular form of "you" in Spanish depends on the level of formality:

* Informal: tú

* Formal: usted

Tú is used for friends, family, and people you know well. Usted is used for strangers, people in authority, and anyone you want to address with respect.

Example:

* Informal: ¿Cómo te llamas? (What is your name?)

* Formal: ¿Cómo se llama usted? (What is your name?)