* Lack of Identification: Proper nouns are the names of specific people, places, or things. Without them, you can't refer to anything concrete. For example, "The dog barked" doesn't tell us which dog, while "Rover barked" clearly identifies a specific canine.
* Ambiguity: Sentences without proper nouns can be confusing. "The city is bustling" doesn't tell us which city, making it unclear where the action is happening.
* Lost Detail: Proper nouns often add detail and richness to writing. "I went to Paris" is more evocative than "I went to a city".
However, sentences without proper nouns are not always wrong. They can be used for:
* General statements: "People should be kind to each other" doesn't require specific names.
* Abstract concepts: "Love is powerful" doesn't need proper nouns to convey its meaning.
* Figurative language: "The sun rose in the east" uses a proper noun, but it's a symbolic representation, not a specific sun.
In conclusion: While sentences can function without proper nouns, their absence makes the language less specific, less informative, and often less interesting.