Writing prompt: My Friend and I

Student essay:
I have two best friends:Peng Rei and Bai Junhao.
Peng Rei and I have many similars. So we are both tall,and both outgoing. We are like both play
sports,because it's very interesting. But we are both like plays computer games,too.
But Bai Junhao and I have different hobbies. I'm taller than him. I'm more hard-working than him. But he's smarter than him.
Although they are the same with me and different from me, it's not necessary. Because of we can help each other.

Corrected essay:
I have two best friends: Peng Rei and Bai Junhao.
Peng Rei and I have many similarities. So we are both tall and both outgoing. We both like to play sports, because it's very interesting. We also both like to play computer games, too.
But Bai Junhao and I have different hobbies. I'm taller than him. I'm more hard-working than him. But he's smarter than me.
Although they are the same as me and different from me, it's not necessary. Because we can help each other.

Error analysis:
error_sentence: Peng Rei and I have many similars.
correct_sentence: Peng Rei and I have many similarities.
error: similars
correction: similarities
error_type: PoS Confusion Error
error_severity: 3
error_description: PoS Confusion Error: 〈similars〉 is an incorrect nominalization of the adjective 〈similar〉, not conforming to English word formation rules. According to the sentence's meaning, it needs to express 'similarities', so it should be changed to the correct noun form 『similarities』, which both conforms to grammatical rules and accurately conveys the meaning.

error_sentence: So we are both tall,and both outgoing.
correct_sentence: So we are both tall and both outgoing.
error: ,
error_type: Punctuation Error
error_severity: 2
error_description: Punctuation Error: A comma is misused to separate the parallel adjectives 〈tall〉 and 〈outgoing〉. According to English punctuation rules for parallel structures, two parallel adjectives connected directly do not require a comma; delete the redundant comma to conform to the punctuation rules for English parallel structures.

error_sentence: We are like both play
sports,because it's very interesting.
correct_sentence: We both like to play sports, because it's very interesting.
error: are like both play

correction: both like to play
error_type: Word Redundancy Error
error_severity: 5
error_description: ① Word Redundancy Error: The structure 〈We are like〉 has a double predicate issue with the linking verb 〈are〉 and the main verb 〈like〉. According to the semantic expression needs, delete the redundant linking verb 〈are〉, retaining the concise structure 『We like』; ② Word Order Error: The original word order 〈like both〉 is improper, leading to semantic ambiguity. According to English adverb placement rules, move 〈both〉 before the predicate verb, forming the standard word order 『both like to play』, making the modification relationship clearer; ③ Nonfinite Verb Form Error: The verb 〈play〉 after 〈like〉 should use the to-infinitive structure. According to verb collocation rules, correct it to the complete form 『to play』, forming the correct collocation 『both like to play』.

error_sentence: But we are both like plays computer games,too.

correct_sentence: We also both like to play computer games, too.

error: But we are
correction: We also
error_type: Word Redundancy Error
error_severity: 5
error_description: ① Conjunction Error: The preceding text already used 〈But〉 to indicate a turn; when subsequently describing similar actions of the same subject, using the additive adverb 『also』 is more logical. Delete the adversative conjunction 〈But〉 and add 『also』 to reflect semantic progression; ② Word Redundancy Error: The structure 〈We are like〉 has a double predicate issue with the linking verb 〈are〉 and the main verb 〈like〉. According to the semantic expression needs, delete the redundant linking verb 〈are〉, retaining the concise structure 『We like』.

error_sentence: But we are both like plays computer games,too.

correct_sentence: We also both like to play computer games, too.

error: plays
correction: to play
error_type: Nonfinite Verb Form Error
error_severity: 3
error_description: Nonfinite Verb Form Error: The verb 〈play〉 after 〈like〉 should use the to-infinitive structure. According to verb collocation rules, correct it to the complete form 『to play』, forming the correct collocation 『both like to play』.

error_sentence: But he's smarter than him.

correct_sentence: But he's smarter than me.

error: him
correction: me
error_type: Pronoun Error
error_severity: 3
error_description: Pronoun Error: In a comparative structure, when the object of comparison is the speaker, the corresponding objective case pronoun should be used. The original pronoun 〈him〉 is incorrect, leading to confusion of the comparison object. Change 〈him〉 to the objective case 『me』, forming the correct comparative structure 『the same as me』.

error_sentence: Although they are the same with me and different from me, it's not necessary.
correct_sentence: Although they are the same as me and different from me, it's not necessary.
error: with
correction: as
error_type: Preposition Error
error_severity: 2
error_description: Preposition Error: According to prepositional phrase usage norms, when expressing 'the same as...', the preposition 『as』 should be used instead of 〈with〉. Change the incorrect collocation 〈the same with〉 to the fixed phrase 『the same as』, conforming to idiomatic English expression.

error_sentence: Because of we can help each other.
correct_sentence: Because we can help each other.
error: of
error_type: Conjunction Error
error_severity: 3
error_description: Conjunction Error: 〈Because of〉 is a compound preposition, followed by a nominal component. Here, it needs to connect a complete clause; according to grammatical rules, change it to the subordinating conjunction 『because』, correctly introducing the adverbial clause of reason 『because we can help』.