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 friend like wear red shirt and wear white shoes

Corrected essay:
My friend likes to wear a red shirt and white shoes.

Error analysis:
error_sentence: My friend like wear red shirt and wear white shoes
correct_sentence: My friend likes to wear a red shirt and white shoes.
error: like wear
correction: likes to wear a
error_type: Nonfinite Verb Form Error
error_severity: 5
error_description: ① Subject-Verb Agreement Error: According to the English grammar rule for third-person singular verb conjugation, when the subject 〈My friend〉 is a singular third-person noun phrase, the predicate verb must take the corresponding third-person singular form. The base form verb 〈like〉 in the original sentence does not meet this requirement, so it needs to be corrected to 『likes』 by adding the suffix 『-s』 to form the correct subject-verb structure 『My friend likes』, strictly adhering to the English grammatical norm that a third-person singular subject must correspond to a third-person singular verb form; ② Nonfinite Verb Form Error: According to the rule for forming English infinitives, when 〈wear〉 is used as a nonfinite verb to express purpose or intention, it must form a complete infinitive structure with the particle 『to』. The bare infinitive 〈wear〉 in the original sentence does not meet the grammatical requirement for nonfinite verbs, so 『to』 needs to be added to correct it to 『to wear』, conforming to the standard infinitive structure; ③ Determiner Error: According to the rule for English noun phrase determination, a singular countable noun like 〈shirt〉, when used alone in a sentence, must be accompanied by an appropriate determiner (article/demonstrative, etc.). The original sentence lacks the necessary determiner, so the indefinite article 『a』 needs to be added to form the complete noun phrase 『a shirt』, satisfying the basic English grammatical requirement that singular countable nouns cannot be used alone.

error_sentence: My friend like wear red shirt and wear white shoes
correct_sentence: My friend likes to wear a red shirt and white shoes.
error: wear
error_type: Word Redundancy Error
error_severity: 3
error_description: Word Redundancy Error: According to the grammatical rules for English parallel structures, when the coordinating conjunction 〈and〉 connects two objects governed by the same verb, the second verb should be omitted to avoid repetition. In the original sentence 『likes to wear a red shirt and wear white shoes』, the second 〈wear〉 causes unnecessary verb repetition, so the redundant 〈wear〉 needs to be deleted, correcting the structure to 『likes to wear a red shirt and white shoes』 to make the parallel structure more standard and fluent.

error_sentence: My friend like wear red shirt and wear white shoes
correct_sentence: My friend likes to wear a red shirt and white shoes.
correction: .
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: According to English written syntax rules, all declarative sentences must end with a period 『.』 as the terminal punctuation mark. The original sentence lacks the necessary end punctuation, violating the basic rules of English punctuation usage. Therefore, a terminal punctuation mark 『.』 needs to be added at the end of the sentence to make the sentence structure complete and conform to the standard format requirements of written English.