Your sentence
ma+propre+chambre
Words in this sentence
mon
my (used to qualify masculine nouns and vowel-initial words regardless of gender); Followed by rank, obligatory way of addressing a (male) superior officer within the military. (Folk etymology: military-specific short for "monsieur".)
Determiner
chambre
a chamber in its various senses, including; a room.; a hotel room.; a bedroom.; a house of a parliament.
Noun