تو

In a sentence

• تو دوست خوبی هستی.

  You are a good friend.

  Here, 'تو' is used as the singular second-person pronoun in Persian, equivalent to 'you' in English, addressing someone directly and informally.

• کتاب تو روی میز است.

  Your book is on the table.

  In this sentence, 'تو' is embedded in the possessive pronoun form where it denotes 'your', indicating ownership.

• تو این کار را انجام دادی؟

  Did you do this task?

  Here, 'تو' is used as the subject pronoun in a question, addressing the listener directly in an informal manner.