Yes a proper noun can be the subject of a sentence. eg
John left home early this morning. -- John is the proper noun.
That would be the subject of the sentence.
Subject
The subject of the sentence is the proper noun 'Isabel'.
The nouns in the sentence are:friend, common noun, subject of the sentence;Harry, proper noun, an appositive, renames the noun 'friend';boy, common noun, subject complement, renames the subject noun.
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
The noun in the sentence is Cindy; a proper noun, the name of a person; the subject of the sentence.
Pencil proper or common noun
Exxon is a proper noun
proper noun
The noun Bible (capital B) is a proper noun as the title of the religious text of Christianity. The noun bible (lower case b) is a common noun as a word for a book that is considered the most important one for a particular subject.
Yes, the word 'Ali' is a proper noun, the name of a person.A proper noun is the name or title of a specific person, place, or thing.A proper noun is always capitalized.
proper noun