The noun badminton is a common noun. Badminton is only a proper noun when it is used for the name of something specific, such as Dallas Badminton Club or Dave Freeman Open Badminton Classic.
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
Yes.
Oh, dude, a rug is a common noun. It's not like some fancy proper noun like BeyoncΓ© or Hogwarts. Just your everyday, run-of-the-mill rug. But hey, it's still doing its job of tying the room together, man.
It is a proper noun, because it is the name of a specific thing.
proper
Proper noun
it's a common noun. a proper noun would be Spider-Man.
Pencil proper or common noun
Proper noun or common noun
The noun cassette is a common noun.
a common noun?