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:
My classmate are so good. This is my friend Amy she is so perrty. She wear a white shirt and black skirt. This is my news friend. He name is jack. He is perrty to. He like wear blue shoes. We are so happy.

Corrected essay:
My classmates are so good. This is my friend Amy. She is so pretty. She wears a white shirt and a black skirt. This is my new friend. His name is Jack. He is pretty too. He likes to wear blue shoes. We are so happy.

Error analysis:
error_sentence: My classmate are so good.
correct_sentence: My classmates are so good.
error: classmate
correction: classmates
error_type: Noun Number Error
error_severity: 2
error_description: Noun Number Error: According to the sentence meaning, 〈classmate〉 needs to be in the plural form to express the concept of 'multiple classmates', therefore the singular countable noun 『classmate』 is changed to the plural noun 『classmates』 to maintain consistency with the plural meaning in the context.

error_sentence: This is my friend Amy she is so perrty.
correct_sentence: This is my friend Amy. She is so pretty.
error: she
correction: . She
error_type: Punctuation Error
error_severity: 2
error_description: ① Punctuation Error: According to English grammar rules, the two independent clauses 〈This is my friend Amy〉 and 〈she is so perrty〉 lack punctuation separation and need to be connected by a period or a conjunction. Here, a period is chosen to separate them into independent sentences, so 『. 』 is added to conform to sentence structure norms; ② Case Error: According to English writing conventions, the first letter of the first word in a sentence must be capitalized, therefore the lowercase form 〈she〉 is changed to the uppercase form 『She』 to ensure grammatical correctness.

error_sentence: This is my friend Amy she is so perrty.
correct_sentence: She is so pretty.
error: perrty
correction: pretty
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to English vocabulary spelling rules, 〈perrty〉 does not conform to the correct spelling form and should be corrected to the adjective 『pretty』 meaning 'beautiful', to ensure accurate word spelling and meet the needs of sentence meaning expression.

error_sentence: She wear a white shirt and black skirt.
correct_sentence: She wears a white shirt and a black skirt.
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〉 in the simple present tense requires the third-person singular form of the verb, therefore the base form verb 〈wear〉 is changed to the third-person singular form 『wears』 to maintain subject-verb agreement.

error_sentence: She wear a white shirt and black skirt.
correct_sentence: She wears a white shirt and a black skirt.
correction: a
error_type: Determiner Error
error_severity: 2
error_description: Determiner Error: According to English grammar rules, the singular countable noun 〈black skirt〉 requires an indefinite article for specification when used generically, therefore the indefinite article 『a』 is added to form 『a black skirt』, conforming to the grammatical norms for singular nouns.

error_sentence: This is my news friend.
correct_sentence: This is my new friend.
error: news
correction: new
error_type: Adjective Error
error_severity: 3
error_description: Adjective Error: According to English grammar rules, 〈news〉 is an uncountable noun and cannot directly modify the noun 〈friend〉. Here, the adjective form is needed to express the meaning 'new', therefore 〈news〉 is changed to the adjective 『new』, forming the correct collocation 『new friend』.

error_sentence: He name is jack.
correct_sentence: His name is Jack.
error: He
correction: His
error_type: Pronoun Error
error_severity: 3
error_description: Pronoun Error: According to English grammar rules, 〈He〉 is a subjective pronoun (used as a subject), whereas here the possessive pronoun form is needed to express 'his' to modify the noun 〈name〉, therefore the subjective pronoun 〈He〉 is changed to the possessive pronoun 『His』, forming the correct possessive structure 『His name』.

error_sentence: He name is jack.
correct_sentence: His name is Jack.
error: jack
correction: Jack
error_type: Case Error
error_severity: 1
error_description: Case Error: According to English writing conventions, proper nouns like names must be capitalized, therefore the lowercase form 〈jack〉 is corrected to the capitalized form 『Jack』 to comply with the standardized writing requirements for proper nouns.

error_sentence: He is perrty to.
correct_sentence: He is pretty too.
error: perrty to
correction: pretty too
error_type: Adverb Error
error_severity: 2
error_description: ① Spelling Error: According to English vocabulary rules, the word 〈perrty〉 is misspelled and should be corrected to the adjective 『pretty』 (meaning 'beautiful') to ensure accurate spelling; ② Adverb Error: According to the sentence meaning, the adverb 『too』 (meaning 'also') is needed here instead of the preposition 〈to〉, therefore it is changed to 『too』 to make the sentence structure correct and the meaning clear.

error_sentence: He like wear blue shoes.
correct_sentence: He likes to wear blue shoes.
error: like
correction: likes to
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: ① Subject-Verb Agreement Error: According to English grammar rules, the third-person singular subject 〈He〉 in the simple present tense requires the third-person singular form of the verb, therefore the base form verb 〈like〉 is changed to 『likes』, forming the correct structure He likes, to maintain subject-verb agreement; ② Nonfinite Verb Form Error: According to the sentence structure, 〈wear〉 functions as an object complement in the sentence and requires the infinitive form 'to + base verb', therefore the infinitive marker 『to』 is added, correcting it to 『 to wear』, conforming to the grammatical rules for nonfinite verbs.