What is the correct possessive adjective to describe 'my brother' in French?

Which possessive adjective correctly describes 'our sister' in French?

What is the French possessive adjective for 'their parents'?

Which possessive adjective means 'your' (formal/plural) in French?

What is the correct possessive adjective to describe 'her book' in French?

What is the French possessive adjective for 'my friends'?

Which possessive adjective correctly describes 'his car' in French?

What is the French possessive adjective for 'our house'?

Which possessive adjective means 'my' in reference to a feminine noun in French?

What is the correct possessive adjective for 'your (informal)' in reference to a masculine singular noun in French?