чей

Asking whose (basic questions)

• Чэ́й э́то телефо́н?

  Whose phone is this?

• Чья э́то маши́на?

  Whose car is this?

• Чьё э́то пальто́?

  Whose coat is this?

• Чьи э́то ключи́?

  Whose keys are these?

Common prepositional patterns

• За чэ́й счёт

  at whose expense

• По чьэ́й вине́

  through whose fault

• Под чьим руководство́м

  under whose leadership

• От чьего́ и́мени

  on whose behalf

Indefinite and compound forms

• чэ́й-то

  someone’s

• чья́-то

  someone’s (feminine)

• чьё-то

  someone’s (neuter)

• чьи́-то

  someone’s (plural)