Writing prompt: The Advantages and Disadvantages of Private Cars

Student essay:
A number of person think the car which is convenient, but someone think the car plays an important role in the modern life. Our life can't have no cars. Everyone wants one.
Cars have many advantages. For example,wherever,people can drive thier own car to where they want to go. Cars instead of walk, driving car spends less time than walk that going to some places.
Every coin has two sides. Cars also have disadvantages. Such as cars pollute the air. The two sides of street park some cars that make the traffic become crowded. Many car accidents make people lose life.
In conclusion, cars are useful in our life. We take the public transport to where we want to. However, we can reduce the times of drive cars. We should protect the environment.

Corrected essay:
A number of people think the car is convenient, but someone thinks the car plays an important role in the modern life. Our life can't be without cars. Everyone wants one.
Cars have many advantages. For example, people can drive their own car to wherever they want to go. Cars replace walking, and driving a car takes less time than walking when going to some places.
Every coin has two sides. Cars also have disadvantages, such as polluting the air. Some cars parked on the two sides of the street make the traffic become crowded. Many car accidents make people lose life.
In conclusion, cars are useful in our life. We take the public transport to where we want to go. However, we can reduce the times of driving cars. We should protect the environment.

Error analysis:
error_sentence: A number of person think the car which is convenient, but someone think the car plays an important role in the modern life.
correct_sentence: A number of people think the car is convenient, but someone thinks the car plays an important role in the modern life.
error: person
correction: people
error_type: Noun Number Error
error_severity: 2
error_description: Noun Number Error: Based on the sentence's meaning, a plural concept is intended here; the original word 〈person〉 is singular and should be changed to the plural form 『people』 to maintain subject-verb agreement.

error_sentence: A number of person think the car which is convenient, but someone think the car plays an important role in the modern life.
correct_sentence: A number of people think the car is convenient, but someone thinks the car plays an important role in the modern life.
error: which
error_type: Relative Word Error
error_severity: 3
error_description: Relative Word Error: In the original sentence 〈A number of people think the car which is convenient〉, the relative word 〈which〉 is redundant, making the meaning unclear; 〈which〉 should be deleted to make the sentence structure clearer.

error_sentence: A number of person think the car which is convenient, but someone think the car plays an important role in the modern life.
correct_sentence: A number of people think the car is convenient, but someone thinks the car plays an important role in the modern life.
error: think
correction: thinks
error_type: Subject-Verb Agreement Error
error_severity: 3
error_description: Subject-Verb Agreement Error: In the original sentence 〈but someone think the car plays an important role in the modern life.〉, the subject 〈someone〉 is third-person singular; based on the principle of subject-verb agreement, the verb 〈think〉 should also be changed to the third-person singular form 『thinks』.

error_sentence: Our life can't have no cars.
correct_sentence: Our life can't be without cars.
error: have no
correction: be without
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: Based on the context, the intended meaning here is “life cannot be without cars”; the original phrase 〈have no〉 does not fit the semantic requirement and should be changed to 『be without』 to accurately express the meaning.

error_sentence: For example,wherever,people can drive thier own car to where they want to go.
correct_sentence: For example, people can drive their own car to wherever they want to go.
error: ,wherever
error_type: Adverb Error
error_severity: 2
error_description: Adverb Error: Based on the sentence's meaning, the adverb 〈wherever〉 is redundant here; 〈,wherever〉 should be deleted to ensure correct sentence structure and fluency.

error_sentence: For example,wherever,people can drive thier own car to where they want to go.
correct_sentence: For example, people can drive their own car to wherever they want to go.
error: thier
correction: their
error_type: Spelling Error
error_severity: 1
error_description: Spelling Error: Based on the sentence's meaning, the intention is to express “their”; therefore, 〈thier〉 is a misspelling of 『their』 and needs to be corrected to 『their』 to make the sentence coherent.

error_sentence: For example,wherever,people can drive thier own car to where they want to go.
correct_sentence: For example, people can drive their own car to wherever they want to go.
error: where
correction: wherever
error_type: Conjunction Error
error_severity: 3
error_description: Conjunction Error: Based on the context, the intended meaning here is “wherever” (no matter where); the original word 〈where〉 does not fit the semantic requirement and should be changed to the concessive adverbial clause conjunction 『wherever』 to accurately express the meaning.

error_sentence: Cars instead of walk, driving car spends less time than walk that going to some places.

correct_sentence: Cars replace walking, and driving a car takes less time than walking when going to some places.

error: instead of walk, driving car spends
correction: replace walking, and driving a car takes
error_type: Sentence Structure Error
error_severity: 4
error_description: Sentence Structure Error: The original sentence 〈Cars instead of walk, driving car spends less time than walk that going to some places.〉 does not conform to English sentence structure norms and its meaning is unclear; based on the context, it should be changed to 『Cars replace walking, and driving a car takes less time than walking when going to some places.』.

error_sentence: Cars instead of walk, driving car spends less time than walk that going to some places.

correct_sentence: Cars replace walking, and driving a car takes less time than walking when going to some places.

error: walk that
correction: walking when
error_type: Conjunction Error
error_severity: 4
error_description: ① Nonfinite Verb Form Error: According to English expression habits, the object of comparison should be the gerund 『walking』; ② Conjunction Error: Based on the context, the intention is to introduce a time adverbial clause, so 『when』 should be used instead of 〈that〉 to connect.

error_sentence: Cars also have disadvantages. Such as cars pollute the air.
correct_sentence: Cars also have disadvantages, such as polluting the air.
error: . Such as cars pollute
correction: , such as polluting
error_type: Nonfinite Verb Form Error
error_severity: 4
error_description: ① Punctuation Error: 〈such as〉 introduces examples and cannot form an independent sentence; it should be separated from the preceding clause by a comma 『,』; ② Nonfinite Verb Form Error: According to English grammar rules, the example content should use the gerund 『polluting』 to maintain parallel structure.

error_sentence: The two sides of street park some cars that make the traffic become crowded.
correct_sentence: Some cars parked on the two sides of the street make the traffic become crowded.
error: The
correction: Some cars parked on the
error_type: Sentence Structure Error
error_severity: 4
error_description: Sentence Structure Error: The original sentence 〈The two sides of street park some cars that make the traffic become crowded.〉 does not conform to English sentence structure norms and its meaning is unclear; based on the context, it should be changed to 『Some cars parked on the two sides of the street park some cars that make the traffic become crowded.』.

error_sentence: The two sides of street park some cars that make the traffic become crowded.
correct_sentence: Some cars parked on the two sides of the street make the traffic become crowded.
error: street park some cars that
correction: the street
error_type: Sentence Structure Error
error_severity: 4
error_description: Sentence Structure Error: The original sentence 〈The two sides of street park some cars that make the traffic become crowded.〉 does not conform to English sentence structure norms and its meaning is unclear; based on the context, it should be changed to 『Some cars parked on the two sides of the street park some cars that make the traffic become crowded.』.

error_sentence: We take the public transport to where we want to.
correct_sentence: We take the public transport to where we want to go.
correction: go
error_type: Verb Choice Error
error_severity: 3
error_description: Verb Choice Error: A verb is missing after the preposition 〈to〉 at the end of the sentence; based on the context, the verb 『go』 needs to be added to completely express the meaning of “go somewhere”.

error_sentence: However, we can reduce the times of drive cars.
correct_sentence: However, we can reduce the times of driving cars.
error: drive
correction: driving
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: Nonfinite Verb Form Error: According to English grammar rules, the preposition 〈of〉 should be followed by the gerund form 『driving』, not the base form of the verb 〈drive〉.