The nouns witches, ghosts, and goblins are all common nouns. Any common noun can be a proper noun when used as a name or a title, such as the movie 'The Witches of Eastwick'.
proper
As a name of a road , Park Avenue', it is a proper noun, and both words star with a capital letter. However, when used separately, as 'the park, or 'the avenue', they are common nouns and so not need a capital letter.
common
It is a proper noun, because it is the name of a specific thing.
common
Ghosts do NOT exist. When you die, you got to heaven or hell. There is no in between. P.S GOD ROCKS
proper
As a name of a road , Park Avenue', it is a proper noun, and both words star with a capital letter. However, when used separately, as 'the park, or 'the avenue', they are common nouns and so not need a capital letter.
No. Ghosts have no physical existence so they have no structure of any kind.
common
common and proper
It is a proper noun, because it is the name of a specific thing.
common
it's a common noun. a proper noun would be Spider-Man.
That is the proper spelling of the word "ghosts" (spirits, apparitions).
Proper
Pencil proper or common noun