Writing prompt: Based on what you learned in this unit and the provided hints, use colors to describe your classmate's attire.
Writing hints: wear; shirt; shoes; beautiful; like

Student essay:
This is my school. I lots of classmater. Amy is my best friend. She wear a pink shirt and a blue socks. It is very beautiful. She wear a yellow shoes. I like she

Corrected essay:
This is my school. I have lots of classmates. Amy is my best friend. She wears a pink shirt and blue socks. They are very beautiful. She wears yellow shoes. I like her.

Error analysis:
error_sentence: I lots of classmater.
correct_sentence: I have lots of classmates.
correction: have
error_type: Sentence Structure Error
error_severity: 4
error_description: Sentence Structure Error: According to the original sentence's meaning, the sentence intends to express 'I have lots of classmates'; the sentence lacks a predicate verb, resulting in an incomplete subject-verb structure. Therefore, there is a sentence structure error here. The predicate verb 『have』 needs to be added after the subject 〈I〉 to form a complete subject-verb-object structure consistent with the original meaning.

error_sentence: I lots of classmater.
correct_sentence: I have lots of classmates.
error: classmater
correction: classmates
error_type: Noun Number Error
error_severity: 3
error_description: ① Spelling Error: According to the original sentence's meaning, the sentence intends to express 'I have lots of classmates'; the correct spelling for '同学' is 'classmate', so the misspelling 〈classmater〉 needs to be changed to 『classmate』 to conform to English spelling conventions; ② Noun Number Error: According to the original sentence's meaning, the sentence intends to express 'I have lots of classmates', requiring the plural form of the countable noun; 〈classmate〉 needs to be changed to the plural form 『classmates』 to fit the original meaning.

error_sentence: She wear a pink shirt and a blue socks.
correct_sentence: She wears a pink shirt and blue socks.
error: wear
correction: wears
error_type: Subject-Verb Agreement Error
error_severity: 3
error_description: Subject-Verb Agreement Error: According to English grammar rules, the third-person singular subject 〈She〉 requires the third-person singular form of the predicate verb; there is a subject-verb agreement error here, needing the base form 〈wear〉 to be changed to the third-person singular present tense form 『wears』 to align with the context's tense and the subject-verb agreement principle.

error_sentence: She wear a pink shirt and a blue socks.
correct_sentence: She wears a pink shirt and blue socks.
error: a
error_type: Determiner Error
error_severity: 2
error_description: Determiner Error: According to English grammar rules, the singular countable noun 〈shirt〉 requires a determiner, while the plural countable noun 〈socks〉 cannot be preceded by an indefinite article. Therefore, there is a determiner error here. An indefinite article 『a』 needs to be added before 〈shirt〉 to mean 'a pink shirt', and the indefinite article 〈a〉 before 〈socks〉 needs to be deleted to mean 'blue socks' to fit the original meaning and English grammar rules.

error_sentence: It is very beautiful.
correct_sentence: They are very beautiful.
error: It is
correction: They are
error_type: Pronoun Error
error_severity: 3
error_description: Pronoun Error: According to the context, the pronoun here refers to the previously mentioned 〈pink shirt and blue socks〉, requiring a plural pronoun and the corresponding plural form of the predicate verb. Therefore, there is a pronoun error here. 〈It is〉 should be changed to 『They are』 to conform to the context and English grammar rules.

error_sentence: She wear a yellow shoes.
correct_sentence: She wears yellow shoes.
error: wear a
correction: wears
error_type: Subject-Verb Agreement Error
error_severity: 4
error_description: ① Subject-Verb Agreement Error: The third-person singular subject 〈She〉 requires the third-person singular form of the predicate verb; the base form 〈wear〉 needs to be changed to the third-person singular present tense form 『wears』 to conform to the subject-verb agreement principle; ② Determiner Error: According to English grammar rules, the indefinite article is used to specify singular countable nouns. The original noun 〈shoes〉 is plural; plural countable nouns cannot be preceded by an indefinite article, so the redundant indefinite article 〈a〉 is deleted to conform to English grammar rules.

error_sentence: I like she
correct_sentence: I like her.
error: she
correction: her.
error_type: Pronoun Error
error_severity: 3
error_description: Pronoun Error: According to English grammar rules, the object form of the pronoun is required after the verb 〈like〉; therefore, there is a pronoun error here. The subjective pronoun 〈she〉 needs to be changed to the objective form 『her』 to conform to grammar rules.